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INTRODUCTION: The spatiotemporal variation in malaria burden underpins the need for targeted malaria interventions. Despite the scale-up of malaria control interventions in Ghana, malaria remains the leading cause of hospital admissions and deaths among children below 5 years (U5). We described spatiotemporal distribution of U5 malaria morbidity and mortality from 2012 to 2017 to provide evidence for deployment of specific malaria interventions to regions of hotspots in Ghana. METHODS: We conducted a retrospective review of district-level malaria surveillance data from 2012 to 2017. We obtained confirmed U5 malaria case and population data for all districts in Ghana, and computed yearly smoothed malaria incidence and mortality rates. Hotspot analysis was performed using GeoDa’s Global and Local Moran I tests of spatial autocorrelation. RESULTS: Overall, 8,132,769 U5 malaria cases and 5,932 deaths were reported, with case fatality rate of 0.1%. Under-five malaria incidence increased from 16.4% in 2012 to 31.3% in 2017, and the mortality rate per 100,000 decreased from 30.2 in 2012 to 6.1 in 2017. We found variation in morbidity hotspots from 8 to 23 in the western, south-western and north-eastern areas of the country each year, and six persistent mortality hotspots in the north-eastern areas. CONCLUSIONS: Over the review period, U5 malaria morbidity increased while mortality decreased. Variability in morbidity hotspots occurred across the western and northern regions unlike persistence of mortality hotspots in the north-eastern region. We recommend that the National Malaria Control Program systematically deploys preventive and case management interventions to areas of hotspots and also conduct a further evaluation to identify the causes of high mortality in the northeastern areas.

Introduction:the Democratic Republic of Congo (DRC) declared its 10thoutbreak of Ebola virus disease (EVD) in 42 years on August 1st2018. The rapid rise and spread of the EVD outbreak threatened health security in neighboring countries and global health security. The United Nations developed an EVD preparedness and readiness (EVD-PR) plan to assist the nine neighboring countries to advance their critical preparedness measures. In Uganda, EVD-PR was implemented between 2018 and 2019. The World Health Organization commissioned an independent evaluation to assess the impact of the investment in EVD-PR in Uganda. Objectives: i) to document the program achievements; ii) to determine if the capacities developed represented good value for the funds and resources invested; iii) to assess if more cost-effective or sustainable alternative approaches were available; iv) to explore if the investments were aligned with country public health priorities; and v) to document the factors that contributed to the program success or failure. Methods:during the EVD preparedness phase, Uganda's government conducted a risk assessment and divided the districts into three categories, based on the potential risk of EVD. Category I included districts that shared a border with the DRC provinces where EVD was ongoing or any other district with a direct transport route to the DRC. Category II were districts that shared a border with the DRC but not bordering the DRC provinces affected by the EVD outbreak. Category III was the remaining districts in Uganda. EVD-PR was implemented at the national level and in 22 category I districts. We interviewed key informants involved in program design, planning and implementation or monitoring at the national level and in five purposively selected category I districts. Results:Ebola virus disease preparedness and readiness was a success and this was attributed mainly to donor support, the ministry of health's technical capacity, good coordination, government support and community involvement. The resources invested in EVD-PR represented good value for the funds and the activities were well aligned to the public health priorities for Uganda. Conclusion:Ebola virus disease preparedness and readiness program in Uganda developed capacities that played an essential role in preventing cross border spread of EVD from the affected provinces in the DRC and enabled rapid containment of the two importation events. These capacities are now being used to detect and respond to the COVID-19 pandemic.

Public health emergency (PHE) response in sub-Saharan Africa is constrained by inadequate skilled public health workforce and underfunding. Since 2005, the African Field Epidemiology Network (AFENET) has been supporting field epidemiology capacity development and innovative strategies are required to use this workforce. In 2018, AFENET launched a continental rapid response team: the AFENET Corps of Disease Detectives (ACoDD). ACoDD comprises field epidemiology graduates and residents and was established to support PHE response. Since 2018, AFENET has deployed the ACoDD to support response to several PHEs. The main challenges faced during ACoDD deployments were financing of operations, ACoDD safety and security, resistance to interventions and distrust of the responders by some communities. Our experience during these deployments showed that it was feasible to mobilise and deploy ACoDD within 48 hours. However, the sustainability of deployments will depend on establishing strong linkages with the employers of ACoDD members. PHEs are effectively controlled when there is a fast deployment and strong linkages between the stakeholders. There are ongoing efforts to strengthen PHE preparedness and response in sub-Saharan Africa. ACoDD members are a competent workforce that can effectively augment PHE response. ACoDD teams mentored front-line health workers and community health workers who are critical in PHE response. Public health emergence response in sub-Saharan Africa is constrained by inadequacies in a skilled workforce and underfunding. ACoDD can be utilised to overcome the challenges of accessing a skilled public health workforce. To improve health security in sub-Saharan Africa, more financing of PHE response is needed.

Background Since the declaration of the 10th Ebola Virus Disease (EVD) outbreak in DRC on 1st Aug 2018, several neighboring countries have been developing and implementing preparedness efforts to prevent EVD cross-border transmission to enable timely detection, investigation, and response in the event of a confirmed EVD outbreak in the country. We describe Uganda’s experience in EVD preparedness. Results On 4 August 2018, the Uganda Ministry of Health (MoH) activated the Public Health Emergency Operations Centre (PHEOC) and the National Task Force (NTF) for public health emergencies to plan, guide, and coordinate EVD preparedness in the country. The NTF selected an Incident Management Team (IMT), constituting a National Rapid Response Team (NRRT) that supported activation of the District Task Forces (DTFs) and District Rapid Response Teams (DRRTs) that jointly assessed levels of preparedness in 30 designated high-risk districts representing category 1 (20 districts) and category 2 (10 districts). The MoH, with technical guidance from the World Health Organisation (WHO), led EVD preparedness activities and worked together with other ministries and partner organisations to enhance community-based surveillance systems, develop and disseminate risk communication messages, engage communities, reinforce EVD screening and infection prevention measures at Points of Entry (PoEs) and in high-risk health facilities, construct and equip EVD isolation and treatment units, and establish coordination and procurement mechanisms. Conclusion As of 31 May 2019, there was no confirmed case of EVD as Uganda has continued to make significant and verifiable progress in EVD preparedness. There is a need to sustain these efforts, not only in EVD preparedness but also across the entire spectrum of a multi-hazard framework. These efforts strengthen country capacity and compel the country to avail resources for preparedness and management of incidents at the source while effectively cutting costs of using a “fire-fighting” approach during public health emergencies.

Podoconiosis, a noninfectious elephantiasis, is a disabling neglected tropical disease. In August 2015, an elephantiasis case-cluster was reported in Kamwenge District, western Uganda. We investigated to identify the disease's nature and risk factors. We defined a suspected podoconiosis case as onset in a Kamwenge resident of bilateral asymmetrical lower limb swelling lasting ≥ 1 month, plus ≥ 1 of the following associated symptoms: skin itching, burning sensation, plantar edema, lymph ooze, prominent skin markings, rigid toes, or mossy papillomata. A probable case was a suspected case with negative microfilaria antigen immunochromatographic card test (ruling out filarial elephantiasis). We conducted active case-finding. In a case-control investigation, we tested the hypothesis that the disease was caused by prolonged foot skin exposure to irritant soils, using 40 probable case-persons and 80 asymptomatic village control-persons, individually matched by age and sex. We collected soil samples to characterize irritants. We identified 52 suspected (including 40 probable) cases with onset from 1980 to 2015. Prevalence rates increased with age; annual incidence (by reported onset of disease) was stable over time at 2.9/100,000. We found that 93% (37/40) of cases and 68% (54/80) of controls never wore shoes at work (Mantel-Haenszel odds ratio [ORMH] = 7.7; 95% [confidence interval] CI = 2.0-30); 80% (32/40) of cases and 49% (39/80) of controls never wore shoes at home (ORMH = 5.2; 95% CI = 1.8-15); and 70% (27/39) of cases and 44% (35/79) of controls washed feet at day end (versus immediately after work) (OR = 11; 95% CI = 2.1-56). Soil samples were characterized as rich black-red volcanic clays. In conclusion, this reported elephantiasis is podoconiosis associated with prolonged foot exposure to volcanic soil. We recommended foot hygiene and universal use of protective shoes.

Introduction In October 2017, a blood sample from a resident of Kween District, Eastern Uganda, tested positive for Marburg virus. Within 24 hour of confirmation, a rapid outbreak response was initiated. Here, we present results of epidemiological and laboratory investigations. Methods A district task force was activated consisting of specialised teams to conduct case finding, case management and isolation, contact listing and follow up, sample collection and testing, and community engagement. An ecological investigation was also carried out to identify the potential source of infection. Virus isolation and Next Generation sequencing were performed to identify the strain of Marburg virus. Results Seventy individuals (34 MVD suspected cases and 36 close contacts of confirmed cases) were epidemiologically investigated, with blood samples tested for MVD. Only four cases met the MVD case definition; one was categorized as a probable case while the other three were confirmed cases. A total of 299 contacts were identified; during follow- up, two were confirmed as MVD. Of the four confirmed and probable MVD cases, three died, yielding a case fatality rate of 75%. All four cases belonged to a single family and 50% (2/4) of the MVD cases were female. All confirmed cases had clinical symptoms of fever, vomiting, abdominal pain and bleeding from body orifices. Viral sequences indicated that the Marburg virus strain responsible for this outbreak was closely related to virus strains previously shown to be circulating in Uganda. Conclusion This outbreak of MVD occurred as a family cluster with no additional transmission outside of the four related cases. Rapid case detection, prompt laboratory testing at the Uganda National VHF Reference Laboratory and presence of pre-trained, well-prepared national and district rapid response teams facilitated the containment and control of this outbreak within one month, preventing nationwide and global transmission of the disease., Author summary Marburg virus disease (MVD) is caused by the virus that belongs to the same family as that of Ebola Virus disease. The disease is characterized by severe clinical symptoms such as high fever, diarrhoea and vomiting, and severe bleeding from most body openings. On average, 54% of the people who get infected with Marburg virus die from it [1]. In October 2017, Uganda reported an outbreak of MVD in the eastern district of Kween that borders Kenya in the Mount Elgon plains. This was the first time MVD was being detected in this part of the country since previous MVD outbreaks had been reported in the western part of Uganda. The Ministry of Health together with partners instituted rapid outbreak response for control. Investigations revealed a cluster of one family involving four cases whereby only one survived. The outbreak was traced back into bat caves in Kween district. Rock salt mining in the cave led to a spill-over of the virus into the human population with the subsequent person-to-person transmission. Through contact tracing and isolation of the infected people among other approaches, the outbreak was brought under control as explained in this article.

Background On 6 February 2015, Kampala city authorities alerted the Ugandan Ministry of Health of a “strange disease” that killed one person and sickened dozens. We conducted an epidemiologic investigation to identify the nature of the disease, mode of transmission, and risk factors to inform timely and effective control measures. Methods We defined a suspected case as onset of fever (≥37.5 °C) for more than 3 days with abdominal pain, headache, negative malaria test or failed anti-malaria treatment, and at least 2 of the following: diarrhea, nausea or vomiting, constipation, fatigue. A probable case was defined as a suspected case with a positive TUBEX® TF test. A confirmed case had blood culture yielding Salmonella Typhi. We conducted a case-control study to compare exposures of 33 suspected case-patients and 78 controls, and tested water and juice samples. Results From 17 February–12 June, we identified 10,230 suspected, 1038 probable, and 51 confirmed cases. Approximately 22.58% (7/31) of case-patients and 2.56% (2/78) of controls drank water sold in small plastic bags (ORM-H = 8.90; 95%CI = 1.60–49.00); 54.54% (18/33) of case-patients and 19.23% (15/78) of controls consumed locally-made drinks (ORM-H = 4.60; 95%CI: 1.90–11.00). All isolates were susceptible to ciprofloxacin and ceftriaxone. Water and juice samples exhibited evidence of fecal contamination. Conclusion Contaminated water and street-vended beverages were likely vehicles of this outbreak. At our recommendation authorities closed unsafe water sources and supplied safe water to affected areas.

Background The Integrated Disease Surveillance and Response (IDSR) strategy was adopted as the framework for implementation of International Health Regulation (2005) in the African region of World Health Organisation (WHO AFRO). While earlier studies documented gains in performance of core IDSR functions, Uganda still faces challenges due to infectious diseases. IDSR revitalisation programme aimed to improve prevention, early detection, and prompt response to disease outbreaks. However, little is known about health worker’s perception of the revitalised IDSR training. Methods We conducted focus group discussions of health workers who were trained between 2015 and 2016. Discussions on benefits, challenges and possible solutions for improvement of IDSR training were recorded, transcribed, translated and coded using grounded theory. Results In total, 22/26 FGDs were conducted. Participants cited improved completeness and timeliness of reporting, case detection and data analysis and better response to disease outbreaks as key achievements after the training. Programme challenges included an inadequate number of trained staff, funding, irregular supervision, high turnover of trained health workers, and lack of key logistics. Suggestions to improve IDSR included pre-service and community training, mentorship, regular supervision and improving funding at the district level. Conclusion Health workers perceived that scaling up revitalized IDSR training in Uganda improved public health surveillance. However, they acknowledge encountering challenges that hinder their performance after the training. Ministry of Health should have a mentorship plan, integrate IDSR training in pre-service curricula and advocate for funding IDSR activities to address some of the gaps highlighted in this study.

Background Uganda is a low income country that continues to experience disease outbreaks caused by emerging and re-emerging diseases such as cholera, meningococcal meningitis, typhoid and viral haemorrhagic fevers. The Integrated Disease Surveillance and Response (IDSR) strategy was adopted by WHO-AFRO in 1998 as a comprehensive strategy to improve disease surveillance and response in WHO Member States in Africa and was adopted in Uganda in 2000. To address persistent inconsistencies and inadequacies in the core and support functions of IDSR, Uganda initiated an IDSR revitalisation programme in 2012. The objective of this evaluation was to assess IDSR core and support functions after implementation of the revitalised IDSR programme. Methods The evaluation was a cross-sectional survey that employed mixed quantitative and qualitative methods. We assessed IDSR performance indicators, knowledge acquisition, knowledge retention and level of confidence in performing IDSR tasks among health workers who underwent IDSR training. Qualitative data was collected to guide the interpretation of quantitative findings and to establish a range of views related to IDSR implementation. Results Between 2012 and 2016, there was an improvement in completeness of monthly reporting (69 to 100%) and weekly reporting (56 to 78%) and an improvement in timeliness of monthly reporting (59 to 93%) and weekly reporting (40 to 68%) at the national level. The annualised non-polio AFP rate increased from 2.8 in 2012 to 3.7 cases per 100,000 population

Background On 28 March, 2016, the Ministry of Health received a report on three deaths from an unknown disease characterized by fever, jaundice, and hemorrhage which occurred within a one-month period in the same family in central Uganda. We started an investigation to determine its nature and scope, identify risk factors, and to recommend eventually control measures for future prevention. Methods We defined a probable case as onset of unexplained fever plus ≥1 of the following unexplained symptoms: jaundice, unexplained bleeding, or liver function abnormalities. A confirmed case was a probable case with IgM or PCR positivity for yellow fever. We reviewed medical records and conducted active community case-finding. In a case-control study, we compared risk factors between case-patients and asymptomatic control-persons, frequency-matched by age, sex, and village. We used multivariate conditional logistic regression to evaluate risk factors. We also conducted entomological studies and environmental assessments. Results From February to May, we identified 42 case-persons (35 probable and seven confirmed), of whom 14 (33%) died. The attack rate (AR) was 2.6/100,000 for all affected districts, and highest in Masaka District (AR = 6.0/100,000). Men (AR = 4.0/100,000) were more affected than women (AR = 1.1/100,000) (p = 0.00016). Persons aged 30–39 years (AR = 14/100,000) were the most affected. Only 32 case-patients and 128 controls were used in the case control study. Twenty three case-persons (72%) and 32 control-persons (25%) farmed in swampy areas (ORadj = 7.5; 95%CI = 2.3–24); 20 case-patients (63%) and 32 control-persons (25%) who farmed reported presence of monkeys in agriculture fields (ORadj = 3.1, 95%CI = 1.1–8.6); and 20 case-patients (63%) and 35 control-persons (27%) farmed in forest areas (ORadj = 3.2; 95%CI = 0.93–11). No study participants reported yellow fever vaccination. Sylvatic monkeys and Aedes mosquitoes were identified in the nearby forest areas. Conclusion This yellow fever outbreak was likely sylvatic and transmitted to a susceptible population probably by mosquito bites during farming in forest and swampy areas. A reactive vaccination campaign was conducted in the affected districts after the outbreak. We recommended introduction of yellow fever vaccine into the routine Uganda National Expanded Program on Immunization and enhanced yellow fever surveillance.

Introduction The effect of the Global polio eradication initiative (PEI) on public health programs beyond polio is widely debated. PEI contribution to other health programs has been assessed from the perspective of polio-funded personnel, which may introduce bias as PEI staff are probably more likely to show that they have benefited of other programs. We set out to identify and document how public health programs have benefited from the public health capacity that was provided at the country level as part of the PEI program in a systematic and standardized manner. Methods Between July and November 2017, we conducted a mixed-methods cross-sectional study, which combined two methods: a multi-country quantitative survey and a qualitative study. We created a self-administered electronic multi-lingual questionnaire in English, French and Portuguese. The qualitative study, which followed an interim analysis of the quantitative survey, comprised interviews with national and subnational level staff in a few countries. Results A total of 127 public health workers from 43 of the 47 countries in the African WHO Region responded online. Most of the respondents 56/127 (42.7%) belonged to the immunization sector and 51/127 (38.9%) belonged to the emergencies and outbreaks sector. Respondents who identified themselves with the immunization (50/64 (78%)) and maternal health program (64/82 (78%)) reported the highest level of greatly benefiting from PEI resources. A total of 78/103 (76%) respondents rated PEI's contribution data management system to their program very high and high. Of the 127 respondents, the majority 91 (71.6%) reported that the withdrawal of PEI resources would result in a weakening of surveillance for other diseases; 88 (62.9%) reported that there would be inadequate resources to carry out planned activities and 80 (62.9%) reported that there would be poor logistics and transport for implementation of activities. Cameroon, DRC, Nigeria and Uganda participated in the qualitative study. Each country had between 7-8 key informants from the national and sub-national level for a total of 31 key informants. Polio funds and other PEI resources have supported various activities in the ministries of health of the four countries especially IDSR, data management, laboratories and development of the public health workforce. Respondents believed that the infrastructure and processes that PEI has created need to be maintained, along with the workforce and they believed that this was an essential role of their governments with support from the partners. Conclusion There is a high awareness of the PEI program in all the countries and at all levels which should be leveraged into improving other child survival activities for example routine immunizations. Future large-scale programs of this nature should be designed to benefit other public health programs beyond the specific program. The public health workforce, surveillance development, data management and laboratory strengthening that have been developed by PEI need to be maintained.

Background Uganda adopted and has been implementing the Integrated Disease Surveillance (IDSR) strategy since 2000. The goal was to build the country’s capacity to detect, report promptly, and effectively respond to public health emergencies and priorities. The considerable investment into the program startup realised significant IDSR core performance. However, due to un-sustained funding from the mid-2000s onwards, these achievements were undermined. Following the adoption of the revised World Health Organization guidelines on IDSR, the Uganda Ministry of Health (MoH) in collaboration with key partners decided to revitalise IDSR and operationalise the updated IDSR guidelines in 2012. Methods Through the review of both published and unpublished national guidelines, reports and other IDSR program records in addition to an interview of key informants, we describe the design and process of IDSR revitalisation in Uganda, 2013–2016. The program aimed to enhance the districts’ capacity to promptly detect, assess and effectively respond to public health emergencies. Results Through a cascaded, targeted skill-development training model, 7785 participants were trained in IDSR between 2015 and 2016. Of these, 5489(71%) were facility-based multi-disciplinary health workers, 1107 (14%) comprised the district rapid response teams and 1188 (15%) constituted the district task forces. This training was complemented by other courses for regional teams in addition to the provision of logistics to support IDSR activities. Centrally, IDSR implementation was coordinated and monitored by the MoH’s national task force (NTF) on epidemics and emergencies. The NTF and in close collaboration with the WHO Country Office, mobilised resources from various partners and development initiatives. At regional and district levels, the technical and political leadership were mobilised and engaged in monitoring and overseeing program implementation. Conclusion The IDSR re-vitalization in Uganda highlights unique features that can be considered by other countries that would wish to strengthen their IDSR programs. Through a coordinated partner response, the program harnessed resources which primarily were not earmarked for IDSR to strengthen the program nation-wide. Engagement of the local district leadership helped promote ownership, foster accountability and sustainability of the program.

Introduction : on March 28, 2016 a cluster of deaths resulting from jaundice and hemorrhagic symptoms occurred in Masaka, Central Uganda. We investigated this outbreak to determine the nature of disease, identify risk factors, and recommend control and prevention measures. Methods : we defined a suspected case-person as onset in residents of Masaka, Rukungiri and Kalangala districts from January 2016 onwards of fever not responding to malaria treatment, plus ≥2 of the following: abdominal pain/diarrhea, headache, jaundice, unexplained bleeding. A confirmed case was a suspected case with positive IgM or PCR tests for yellow fever. We conducted medical record reviews and active community case-finding. In a case-control study we compared potential exposures between 32 case-persons and 128 asymptomatic controls matched by age, sex and village. We also conducted entomological studies and environmental assessments. Results : we identified 32 cases (7 confirmed). The overall attack rate (AR, per 100,000) was 0.48 overall (6.4 Masaka, 3.1 Rukungiri and 1.9 Kalangala); the case-fatality rate was 22% (7/32). Men (AR=1.2/10,000) and persons aged 30-39 years (AR = 4.0/10,000) were most affected. 20 (63%) of 32 case-persons and 35 (27%) of 128 control-persons cultivated in forest areas (ORM-H=4.3; 95%CI=1.9-9.7); 23 (71%) of 32 case-persons and 32 (25%) 128 control-persons cultivate in swampy areas (ORM-H=7.5; 95%CI=2.0-18). No one interviewed during this investigation was vaccinated against yellow fever. Sylvatic monkeys and Aedes mosquitoes were identified in the nearby forest areas. Conclusion : this was a sylvatic yellow fever outbreak that occurred in a susceptible population, likely transmitted by mosquito bites during cultivation in forest and swampy areas. We recommended yellow fever vaccination in affected districts and enhanced yellow fever surveillance in neighboring districts. The outbreak stopped following the vaccination.

Background In the absence of accurate data on trends and the burden of human rabies infection in developing countries, animal bite injuries provide useful information to bridge that gap. Rabies is one of the most deadly infectious diseases, with a case fatality rate approaching 100%. Despite availability of effective prevention and control strategies, rabies still kills 50,000 to 60,000 people worldwide annually, the majority of whom are in the developing world. We describe trends and geographical distribution of animal bite injuries (a proxy of potential exposure to rabies) and deaths due to suspected human rabies in Uganda from 2001 to 2015. Methods We used 2001–2015 surveillance data on suspected animal bite injuries, collected from health facilities in Uganda. To describe annual trends, line graphs were used and linear regression tested significance of observed trends at P

Podoconiosis, a form of non-infectious elephantiasis, is a disabling Neglected Tropical Disease. In August 2015, a non-government organization reported an increase in elephantiasis cases in Kamwenge District. We conducted an investigation to confirm the diagnosis, identify causes and risk factors, and guide control efforts. We defined a suspect case-person as a Kamwenge resident with bilateral asymmetrical swelling of lower limbs lasting ≥ 1month, plus ≥ 1 of the following: skin itching; burning sensation; plantar oedema; lymph-ooze; prominent skin markings; rigid toes; mossy papillomata. A probable case was a suspect case with negative microfilaria antigen immunological-card test results. We conducted active case-finding in affected communities. In a case-control study we compared shoe-use and feet-washing practices before disease onset among 40 probable case-persons and 75 asymptomatic village control-persons, matched by age (± 5y) and sex. We collected soil samples to characterize soil-irritant composition. Our active case-finding identified 52 suspect cases in two affected sub-counties during 1980-2015 (incidence = 2.9/100,000/year), including 40 probable cases (mean age = 47y; range: 13-80y). The annual case counts did not increase significantly over time. All case-persons had negative immunological-card test. In the case-control study, 93% (37/40) of probable case-persons and 31% (23/75) of controls-persons never wore shoes at work (OR M-H = 6.7; 95%CI = 1.7-26); 80% (32/40) of probable case-persons and 55% (39/75) of control-persons never wore shoes at home (OR M-H =4.4, 95%CI=1.5-13); 70% (27/39) of probable case-persons and 47% (34/72) of control-persons washed feet at day-end rather than immediately after work (OR = 11, 95%CI = 2.1-57). Soils samples were characterized as being rich black-red volcanic clay. The reported elephantiasis was podoconiosis, which was associated with prolonged foot exposure to volcanic soil. We recommended health education on foot protection and washing, and universal use of protective shoes.

Introduction : living conditions in refugee settings present a fovourable environment for eruption of infectious disease outbreaks. At the end of April 2015, the Uganda Ministry of Health was alerted of an influx of refugees from Burundi into Uganda. Nakivale Refugee Settlement has been in existence since 1959 and had a population of 72,000 refugees of various nationalities by the time of this influx. We assessed the refugee settlement to detect potential public health risks among refugees and identify health service delivery gaps.

Introduction : rabies is one of the most deadly infectious diseases, with a case fatality rate approaching 100%. Despite availability of effective post exposure treatment, rabies still kills 50,000 to 60,000 people worldwide each year, majority of whom in the developing world. There is paucity of information on burden and trends of rabies in developing countries to guide planning processes and rabies control strategies. We analyzed surveillance data on animal bite injuries, a proxy of rabies, to describe trends and geographical distribution of animal bites and deaths due to suspected rabies in Uganda. We described trends and geographical distribution of animal bite injuries and rabies suspected deaths in Uganda from 2013 to 2015. Methods : we retrospectively analyzed health facility surveillance data collected from January 2013 to December 2015. We used line graphs to describe monthly trends and used logistical regression to test significance of observed trends at p Results : a total of 55,592 cases of animal bites were reported during the study period of which 25% (n=13,869) were in Central region, 15% (n=8,488) in Eastern region, 38% (n=21,239) in Northern region and 22% (n=11,996) in Western region. Up to 59% of animal bite injuries were inflicted on males and 80% were persons aged above 5 years. The overall incidence of animal bites was 285 bites per 100,000 population in Northern region, 141 per 100,000 in Central region, 130 per 100,000 in Western region and 91 per 100,000 in Eastern region. Cases of animal bites increased significantly in all regions of the country (p Conclusion : the increase in number of animal bite injuries implies that rabies remains an important public health challenge in Uganda which requires special attention at all levels of planning. There is need to strengthen surveillance and rabies prevention and control strategies to address this public health problem.

Background Between January and June, 2015, a large typhoid fever outbreak occurred in Kampala, Uganda, with 10,230 suspected cases. During the outbreak, area surgeons reported a surge in cases of typhoid intestinal perforation (TIP), a complication of typhoid fever. We conducted an investigation to characterize TIP cases and identify modifiable risk factors for TIP. Methods We defined a TIP case as a physician-diagnosed typhoid patient with non-traumatic terminal ileum perforation. We identified cases by reviewing medical records at all five major hospitals in Kampala from 2013 to 2015. In a matched case-control study, we compared potential risk factors among TIP cases and controls; controls were typhoid patients diagnosed by TUBEX TF, culture, or physician but without TIP, identified from the outbreak line-list and matched to cases by age, sex and residence. Cases and controls were interviewed using a standard questionnaire from 1st -23rd December 2015. We used conditional logistic regression to assess risk factors for TIP and control for confounding. Results Of the 88 TIP cases identified during 2013–2015, 77% (68/88) occurred between January and June, 2015; TIPs sharply increased in January and peaked in March, coincident with the typhoid outbreak. The estimated risk of TIP was 6.6 per 1000 suspected typhoid infections (68/10,230). The case-fatality rate was 10% (7/68). Cases sought care later than controls; Compared with 29% (13/45) of TIP cases and 63% (86/137) of controls who sought treatment within 3 days of onset, 42% (19/45) of cases and 32% (44/137) of controls sought treatment 4–9 days after illness onset (ORadj = 2.2, 95%CI = 0.83–5.8), while 29% (13/45) of cases and 5.1% (7/137) of controls sought treatment ≥10 days after onset (ORadj = 11, 95%CI = 1.9–61). 68% (96/141) of cases and 23% (23/100) of controls had got treatment before being treated at the treatment centre (ORadj = 9.0, 95%CI = 1.1–78). Conclusion Delay in seeking treatment increased the risk of TIPs. For future outbreaks, we recommended aggressive community case-finding, and informational campaigns in affected communities and among local healthcare providers to increase awareness of the need for early and appropriate treatment.

Background On 6 February 2015, Kampala city authorities alerted the Ugandan Ministry of Health of a “strange disease” that killed one person and sickened dozens. We conducted an epidemiologic investigation to identify the nature of the disease, mode of transmission, and risk factors to inform timely and effective control measures. Methods We defined a suspected case as onset of fever (≥37.5 °C) for more than 3 days with abdominal pain, headache, negative malaria test or failed anti-malaria treatment, and at least 2 of the following: diarrhea, nausea or vomiting, constipation, fatigue. A probable case was defined as a suspected case with a positive TUBEX® TF test. A confirmed case had blood culture yielding Salmonella Typhi. We conducted a case-control study to compare exposures of 33 suspected case-patients and 78 controls, and tested water and juice samples. Results From 17 February–12 June, we identified 10,230 suspected, 1038 probable, and 51 confirmed cases. Approximately 22.58% (7/31) of case-patients and 2.56% (2/78) of controls drank water sold in small plastic bags (ORM-H = 8.90; 95%CI = 1.60–49.00); 54.54% (18/33) of case-patients and 19.23% (15/78) of controls consumed locally-made drinks (ORM-H = 4.60; 95%CI: 1.90–11.00). All isolates were susceptible to ciprofloxacin and ceftriaxone. Water and juice samples exhibited evidence of fecal contamination. Conclusion Contaminated water and street-vended beverages were likely vehicles of this outbreak. At our recommendation authorities closed unsafe water sources and supplied safe water to affected areas. Electronic supplementary material The online version of this article (doi:10.1186/s12889-016-4002-0) contains supplementary material, which is available to authorized users.

Background : Although good adherence to antiretroviral therapy (ART) is essential for successful treatment outcomes, some patients may have specific personal barriers to ART adherence. Objectives : To study specific personal barriers to ART adherence. Methods : Quantitative data on patients’ health status, ART adherence, CD4 cell counts and viral loads were collected, and qualitative data on life experiences of five patients with poor ART outcomes and adherence were also collected. Results : Out of 35 patients with poor immunological and virological ART outcomes, 17 (49%) also had poor ART adherence. Patient 1 had no living child and did not disclose her HIV serostatus to her spouse because she wanted to have a child. Patient 2 was an orphan with neither social nor family support. Patient 3 stopped ART when she conceived, returned to the study clinic when pregnant again and was sickly. She was switched to second-line ART with satisfactory outcomes. Patient 4, a 14 year old orphan had missed ART for 2 months when his treatment supporter was away. Patient 5 aged 66 years stopped ART which he blamed for his erectile dysfunction. Conclusions : ART adherence counselling should target specific personal barriers to ART adherence like: lack of family support, health and sexual life concerns, desire to have children and family instability. Key words : Personal barriers, ART adherence, stigma, disclosure, children desire, sexual dysfunction