Search

Background: Q fever is endemic in Iran, thus, we conducted a systematic review and meta-analysis on epidemiology of Coxiella burnetii among humans and animals in Iran. Materials and Methods: A systematic search was performed to identify all articles reporting C. burnetii prevalence in Iranian humans or animals, published from January 2000 to January 2015. Data from articles were extracted, and a pooled estimate of prevalence with corresponding 95% confidence interval (CI) was calculated using random effect method. Results: In this review, 27 papers were identified. The pooled seroprevalence of Q fever in animals was 27% (CI 95%: 23%-32%). The prevalence was 33% (CI 95%: 22%-45%) in goats, 27% (CI 95%: 21%-32%) in sheep, and 17% (CI 95%: 5%-28%) in cattle. The bacterial DNA was detected in 5% (95% CI: 3%-9%) of milk samples, and it was higher in cattle (10%; 95% CI: 6%-16%) than sheep (2%; 95% CI: 0-7%) and goats (4%; 95% CI: 0-12%). Conclusion: C. burnetii DNA or its antibody has been frequently detected among ruminants. Since these animals can transmit the infection to humans, Q fever could be a potential health problem in Iran. [ABSTRACT FROM AUTHOR]

Background: Female prisoners are at risk of acquiring sexually transmitted infections (STIs). There has been no previous study regarding the epidemiological status of STIs among female prisoners in Isfahan, central Iran. Objectives: The aim of this study was to investigate the prevalence and risk factors of the aforementioned infections among women incarcerated in the central prison, Isfahan, to determine appropriate prevention measures. Patients and Methods: In a cross-sectional study, all of the 163 women incarcerated in the central prison, Isfahan in 2009, were voluntarily enrolled by the census method. After completing a checklist consisting of demographic, social, and risk factors, a 5ml blood sample was taken from each individual. The sera were analyzed for markers of the hepatitis B virus (HBV; HBsAg, HBsAb, HBcAb), hepatitis C virus (HCV; HCV antibodies), human immunodeficiency virus (HIV; HIV antibodies), and syphilis (RPR). Confirmatory tests were performed on HCV antibody-positive cases. Results: The mean age of the participants in the study was 34.54 ± 11.2 years old, 94.3% of these women were Iranian, and many of them had only a primary level of education. The prevalence of HBsAg, HBcAb, HBsAb, and HCV antibodies were; 1.2%, 7.4%, 12.9% and 7.4% respectively. No positive RPR or HIV antibodies were detected. Conclusions: A significant relationship was seen between the HCV antibody, drug injection and illegal sex in the women, and also between HBc-Ab and drug injection. Regular screening, educational programs, and facilitation of access to suitable treatment care should be widely implemented in the prison population. Testing for immunity against HBV should be considered on admission, and afterwards vaccination of all prisoners and an appropriate preventative approach should be applied. [ABSTRACT FROM AUTHOR]

Objectives: Juveniles in custody are affected by blood borne viruses due to high rates of risk behaviors. Therefore, they have a disproportionate burden of infectious diseases, such as hepatitis C virus (HCV) infection. The purpose of the present study was to determine prevalence and associated characteristics of hepatitis C infection in inmates of a correctional center in Isfahan, Iran. Methods: We conducted a cross-sectional study of HCV infection in 160 youths, who were admitted to correctional center in Isfahan during 2008-2009. Subjects were asked questions regarding behaviors that might put them at high risk for acquiring HCV and blood was drawn for this test. Sera were analyzed for HCV Ab and RIBA test was performed on antibody-positive HCV. We used Chi-square test and logistic regression model to analyze data and P < 0.05 was considered statistically significant. Results: A total of 160 young prisoners (147 boys and 13 girls) were studied. The mean age of the inmates was 16.59 ± 1.24 year. A history of intravenous drug addiction was reported in 3.8% of them. HCV infection was detected in 7 (4.4%) subjects. This study revealed that history of IDU was the main risk factor for HCV (OR, 134.44; 95% confidence interval [CI], 7.29-2481.03). Conclusions: To prevent HCV transmission, proper drug prevention educations should be performed in young age prisoners. [ABSTRACT FROM AUTHOR]

Background: Millions of children around the world live on the street. They are at higher risk of viral diseases (eg. hepatitis B virus) because of physical, sexual and drug abuse. The aim of this study was to evaluate the prevalence of hepatitis B virus (HBV) and its risk factors in Isfahan street children. Methods: In a cross-sectional study, we selected 399 street children. After getting information and performing the tests for HBs Ag, HBs Ab and HBc Ab, data were analyzed by SPSS software version 15 used t-test, χ², Mann-Whitney and logistic regression. Findings: We studied 271 (68%) boys and 128 (32%) girls. Their mean age was 12.74 ± 3.27 years. In our study, poverty was the main motivation for street children (68% of participants). 91.7%, 94.7% and 96.7% of the participants had no history of smoking, drinking alcoholic beverages or drug abuse, respectively. 34.4% of girls and 4.4% of boys (P = 0.001) were sexually abused and 68% of girls and 17.3% of boys (P = 0.001) were involved in physical fighting. HBs Ag, HBs Ab and HBc Ab seroprevalence were 3.3%, 14.4% and 2.1% respectively. No significant statistical difference was between HBV-seroprevalence and its probable risk factors. Conclusion: Educational programs for safer behaviors, training them to improve their quality of life, and hepatitis B vaccination in those who are nonimmune should be performed. [ABSTRACT FROM AUTHOR]

Background: Juveniles in custody are affected by sexually transmitted infections due to risky behaviors. Therefore, they have a disproportionate burden of hepatitis B virus (HBV) and human immunodeficiency virus (HIV). In this study, the prevalence and associated characteristics of hepatitis B and HIV infections were assessed in young prisoners. Materials and Methods: In this cross‑sectional study, prevalence of HBV and HIV infections was assessed among young prisoners during 2008‑2009. A checklist consisting of demographic, social, and risk factors was filled out and blood was drawn for their tests. Sera were analyzed for hepatitis B surface antigen (HBs Ag), hepatitis B surface antibody (HBs Ab), hepatitis B core antibody (HBc Ab) and HIV Ab, and Western blot test was performed on antibody‑positive HIV. Results: A total number of 160 young prisoners (147 boys and 13 girls) were evaluated. The mean age of the subjects was 16.59 ± 1.24 year. HBs Ag, HBc Ab, HBs Ab, and HIV Ab were detected in 1 (0.63%), 1 (0.63%), 52 (32.5%), and 1 (0.63%), respectively. Conclusion: With respect to national vaccination program against HBV infection, the juvenile prisoners had low prevalence of HBs Ab. [ABSTRACT FROM AUTHOR]

Background: Scientists perceive drug users (DUs) as a high-risk population for hepatitis B virus (HBV) infection. Effective strategies aiming at the reduction of HBV infection can be depicted when its epidemiological status is clearly defined. The present study provides new insight into associated risk factors of HBV infection and its seroepidemiological status among DUs attending drop-in centers (DICs). Methods: This was a cross-sectional study, which was implemented in 7 DICs of Isfahan province. The sample size included 539 participants. Demographic data and risk factors for HBV infection were obtained by a trained social worker using a self-made structured questionnaire. Venous blood sample was obtained and tested for hepatitis B surface antigen (HBsAg), hepatitis B surface antibody, and total hepatitis B core antibody (HBcAb) using enzyme-linked immunosorbent assay. Results: Mean age of the participants was 31.76 ± 8.4 years. They were generally male, Iranian, urban, with an education level of high school or less. The prevalence of HBV infection (HBsAg and/or HBcAb) was 18% (88.490). Regression analysis showed that age, bloodletting, and drug injection, being the sexual partner of injecting DU (IDU), as well as frequency and duration of imprisonment positively correlated with HBV infection. Conclusions: Drug injection bloodletting, and being the sexual partner of IDU, as well as frequency and duration of imprisonment could be considered as contributing factors in HBV infection. [ABSTRACT FROM AUTHOR]

Background: Hepatitis D virus (HDV) is dependent on hepatitis B virus (HBV) infection. Acute infection with HDV can occur simultaneously with acute HBV infection or be superimposed onto a chronic HBV infection. Objectives: This study aimed to identify cases of HDV and determine its prevalence in patients with chronic HBV infection for the first time study in Isfahan, central Iran. Patients and Methods: In a cross-sectional study in 2009, 346 who had been diagnosed for at least 6 months with chronic HBV were enrolled consecutively. Anti-HDV was measured by ELISA in the serum of these patients. Results: The study included 245 males (70.8%) and 101 (29.2%) females with a mean age of 39 ± 12.4 years. Anti-HDV was present in 8 (3.5%) HBe antibody-positive patients (p = 0.36) and in 2 (2.3%) HBe antigen- positive cases (p = 0.68). No association was found between hepatitis D and probable risk factors. Conclusions: This study demonstrates that the prevalence of HDV infection is higher in patients who are positive for HBeAb compared those who are HBeAg-positive. Therefore, most HDV antibody-positive cases in Isfahan are HBV/HDV superinfections but not coinfections. [ABSTRACT FROM AUTHOR]