8 results on '"Rinovírus humano"'
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2. Viral etiology among the elderly presenting acute respiratory infection during the influenza season
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Aripuanã Sakurada Aranha Watanabe, Emerson Carraro, João Manuelo Grisi Candeias, Maria Rita Donalísio, Élcio Leal, Celso Francisco Hernandes Granato, and Nancy Bellei
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Viroses respiratórias ,Rinovírus humano ,Genescan RT-PCR ,Reação em cadeia da polimerase ,Idosos ,Arctic medicine. Tropical medicine ,RC955-962 - Abstract
INTRODUCTION: Acute respiratory tract infections are the most common illness in all individuals. Rhinoviruses have been reported as the etiology of more than 50% of respiratory tract infections worldwide. The study prospectively evaluated 47 elderly individuals from a group of 384 randomly assigned for acute respiratory viral infections (cold or flu) and assessed the occurrence of human rhinovirus (HRV), influenza A and B, respiratory syncytial virus and metapneumovirus (hMPV) in Botucatu, State of São Paulo, Brazil. METHODS: Forty-nine nasal swabs collected from 47 elderly individuals following inclusion visits from 2002 to 2003 were tested by GenScan RT-PCR. HRV-positive samples were sequenced for phylogenetic analysis. RESULTS: No sample was positive for influenza A/B or RSV. HRV was detected in 28.6% (14/47) and hMPV in 2% (1/47). Of 14 positive samples, 9 isolates were successfully sequenced, showing the follow group distribution: 6 group A, 1 group B and 2 group C HRVs. CONCLUSIONS: The high incidence of HRV during the months of the influenza season requires further study regarding HRV infection impact on respiratory complications among this population. Infection caused by HRV is very frequent and may contribute to increasing the already high demand for healthcare during the influenza season.
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- 2011
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- View/download PDF
3. High prevalence of common respiratory viruses and no evidence of Middle East Respiratory Syndrome Coronavirus in Hajj pilgrims returning to Ghana, 2013.
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Annan, Augustina, Owusu, Michael, Marfo, Kwadwo Sarfo, Larbi, Richard, Sarpong, Francisca Naana, Adu‐Sarkodie, Yaw, Amankwa, Joseph, Fiafemetsi, Samuel, Drosten, Christian, Owusu‐Dabo, Ellis, and Eckerle, Isabella
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DISEASE prevalence , *RESPIRATORY diseases , *MERS coronavirus , *PILGRIMAGE to Mecca , *PUBLIC health surveillance - Abstract
Objective The Middle East respiratory syndrome coronavirus (MERS-CoV) emerged in 2012 on the Arabian Peninsula and has caused severe respiratory disease with more than 800 laboratory-confirmed cases. The return of infected pilgrims to their home countries with a putative spread of MERS-CoV necessitates further surveillance. Methods A cross sectional study of 839 adult African Hajj pilgrims returning to Accra in Ghana, West Africa, was conducted in 2013 to assess the prevalence of respiratory symptoms as well as of MERS-CoV, human rhinovirus (HRV), respiratory syncytial virus (RSV) and influenza A virus (FLU A) infection. Results Six hundred and fifty-one (77.6%) pilgrims had respiratory symptoms. Tests were positive for at least one of the viruses other than MERS-CoV in 179 (21.3%) of all pilgrims, with 22.4% detection in symptomatic vs. 17.6% detection in asymptomatic pilgrims. No MERS-CoV was detected, although common respiratory viruses were prevalent, with positive findings for HRV in 141 individuals (16.8%), RSV in 43 individuals (5.1%) and FLU A in 11 individuals (1.3%). Results were positive for more than one virus in 16 (1.9%) individuals, including 14 (1.7%) RSV/HRV co-infections and 2 (0.2%) FLU A/HRV co-infections. A total 146 (22.4%) of the symptomatic returnees tested positive for at least one respiratory virus compared with 33 (17.6%) of the asymptomatic pilgrims who had at least one detectable virus in their sample. Conclusions The prevalence of viral respiratory infections among Hajj pilgrims in both symptomatic and asymptomatic subjects was high. Although it is reassuring that MERS-CoV was not detected in the tested population, there is a need for active surveillance of Hajj pilgrims. [ABSTRACT FROM AUTHOR]
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- 2015
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4. Impacto e sazonalidade da infecção por rinovírus humano em pacientes internados por dois anos consecutivos
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Meri Bordignon Nogueira, Luine R. Vidal, Sonia Mara Raboni, Bernardo Montesanti Machado de Almeida, Hygor Trombetta, Heloisa Z. Faggion, and Jaqueline Leotte
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0301 basic medicine ,Adult ,Male ,medicine.medical_specialty ,Acute respiratory infections ,Rinovírus humano ,Rhinovirus infection ,Adolescent ,Rhinovirus ,Hospitalized patients ,030106 microbiology ,Respiratory virus ,medicine.disease_cause ,Human rhinovirus ,Article ,03 medical and health sciences ,Young Adult ,Internal medicine ,Epidemiology ,Prevalence ,Medicine ,Humans ,In patient ,Pediatrics, Perinatology, and Child Health ,Respiratory system ,Child ,Vírus respiratório ,Respiratory Tract Infections ,Picornaviridae Infections ,business.industry ,Mortality rate ,lcsh:RJ1-570 ,lcsh:Pediatrics ,Middle Aged ,Infecções respiratórias agudas ,Hospitalization ,Cross-Sectional Studies ,Child, Preschool ,Pediatrics, Perinatology and Child Health ,Immunology ,Female ,Seasons ,business ,Brazil - Abstract
Objectives: To report epidemiological features, clinical characteristics, and outcomes of human rhinovirus (HRV) infections in comparison with other community acquired respiratory virus (CRV) infections in patients hospitalized for two consecutive years. Methods: This was a cross-sectional study. Clinical, epidemiological, and laboratory data of patients hospitalized with acute respiratory syndrome in a tertiary care hospital from 2012 to 2013 were reviewed. Results: HRV was the most common CRV observed (36%, 162/444) and was present in the majority of viral co-detections (69%, 88/128), mainly in association with human enterovirus (45%). Most HRV-infected patients were younger than 2 years (57%). Overall, patients infected with HRV had a lower frequency of severe acute respiratory infection than those infected with other CRVs (60% and 84%, respectively, p = 0.006), but had more comorbidities (40% and 27%, respectively; p = 0.043). However, in the adjusted analysis this association was not significant. The mortality rate within the HRV group was 3%. Detection of HRV was more prevalent during autumn and winter, with a moderately negative correlation between viral infection frequency and temperature (r = −0.636, p
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- 2017
5. DETECÇÃO DO RINOVÍRUS HUMANO EM PACIENTES COM INFECÇÃO RESPIRATÓRIA AGUDA EM GUARAPUAVA-PR
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MORAIS, FERNANDO SEIJI and Carraro, Emerson
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Rinovírus humano ,Acute respiratory infections ,Influenza-like illness ,Human rhinovirus ,Infecções respiratórias agudas ,FARMACIA [CIENCIAS DA SAUDE] - Abstract
Submitted by Fabiano Jucá (fjuca@unicentro.br) on 2017-06-09T18:29:30Z No. of bitstreams: 1 FERNANDO SEIJI MORAIS.pdf: 1068468 bytes, checksum: badf91a90ffaa7429ca9fc92a2bc062f (MD5) Made available in DSpace on 2017-06-09T18:29:30Z (GMT). No. of bitstreams: 1 FERNANDO SEIJI MORAIS.pdf: 1068468 bytes, checksum: badf91a90ffaa7429ca9fc92a2bc062f (MD5) Previous issue date: 2016-02-15 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES Acute respiratory infections (ARI) are the most common cause of morbidity and mortality worldwide. Respiratory viruses are responsible for most of the IRA, among them, the human rhinovirus (HRV) is the most frequently identified. The HRV was known as the "common cold virus", an infection limited to the upper respiratory tract with mild symptoms. It is now known that HRV is responsible for more severe syndromes, infecting also the lower respiratory tract and causing life-threatening diseases such as pneumonia, chronic obstructive pulmonary disease and asthma exacerbations. The HRV infects individuals of all ages in similar proportions, with a slight tendency to infect young children most often. This virus seems to circulate during all seasons of the year with a slight increase in the colder months. To date there is no effective treatment against HRV, nor vaccine, due to the existence of more than 160 strains divided among species A, B and C, against which the antibodies exhibit little cross-reactivity. In this study, an epidemiological surveillance HRV in patients with ARI was conducted in a primary care health unit of Guarapuava-PR city, from April to December 2014, in order to estimate an epidemiological profile of this virus in the region. 135 nasal swab samples were collected from patients aged 1-82 years. Information on the clinical presentation, use of medicines for treating ARI, and others were collected. Samples were tested by RT-PCR for detection of HRV, and about 20% yielded a positive result. HRV was detected in patients of all ages. The highest detection rates were found in May and August, relative months to autumn and winter, respectively, in Brazil. The symptoms of HRV positive patients were variable, there were common cold cases, but a relation between HRV infection and influenza-like illness (ILI) presentation was also observed. Symptomatic treatment for ARI reported by patients showed a good level of adaptation to the current literature, but inappropriate use of antibiotics was observed in some cases. The results show a significant detection of HRV in cases of ARI, some with more severe symptoms than expected common cold condition, which is consistent with the current literature and highlights the impact that this virus causes on the local population. As infecções respiratórias agudas (IRA) são a causa mais comum de morbidade e mortalidade em todo o mundo. Os vírus respiratórios são responsáveis pela maioria das IRA, e o Rinovírus humano (HRV) é o mais frequentemente identificado. O HRV era conhecido por causar o resfriado comum, infecção limitada ao trato respiratório superior e de sintomatologia branda. Sabe-se, atualmente, que o HRV infecta também o trato respiratório inferior e causa doenças mais graves, até potencialmente fatais, como a pneumonia, exacerbação de doença pulmonar obstrutiva crônica e asma. O HRV infecta em proporções similares indivíduos de todas as idades, com uma leve tendência a infectar mais frequentemente crianças jovens. Esse vírus circula durante todas as estações do ano, com um discreto aumento nos meses mais frios. Até a data não existe um tratamento eficaz contra o HRV, tão pouco vacina, devido à existência de mais de 160 cepas divididas entre as espécies A, B e C, contra as quais os anticorpos apresentam pouca reatividade cruzada. No presente estudo, foi realizada investigação de infecção por HRV em pacientes com IRA atendidos em uma unidade de básica de saúde do município de Guarapuava-PR, entre o mês de abril a dezembro de 2014. Foram coletadas 135 de swab nasal de pacientes de 1 a 82 anos. Informações clínicas, sobre o uso de medicamentos para tratamento para da IRA, e outras foram coletadas. As amostras foram testadas para presença do HRV por RT-PCR, e aproximadamente 20% produziram resultado positivo. O HRV foi detectado em pacientes de todas as idades. A maior taxa de detecção do HRV ocorreu nos meses de maio e agosto, referentes às estações de outono e inverno, respectivamente, no Brasil. A sintomatologia dos pacientes HRV positivos foi variável, houveram casos de resfriado comum, mas observou-se também uma relação entre a infecção pelo HRV e a apresentação de “doença semelhante à gripe causada pelo vírus Influenza” – do inglês, influenza-like illness (ILI). O tratamento sintomático para IRA relatado pelos pacientes apresentou bom nível de adequação à literatura atual, porém o uso inadequado de antibióticos foi verificado em alguns casos. Os resultados mostram uma detecção significativa do HRV nos casos de IRA, alguns com sintomatologia mais grave que o esperado quadro de resfriado comum, o que condiz com a literatura atual e também evidencia o impacto que esse vírus causa na população local.
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- 2016
6. Impact and seasonality of human rhinovirus infection in hospitalized patients for two consecutive years
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Jaqueline Leotte, Hygor Trombetta, Heloisa Z. Faggion, Bernardo M. Almeida, Meri B. Nogueira, Luine R. Vidal, and Sonia M. Raboni
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Rinovírus humano ,Infecções respiratórias agudas ,Vírus respiratório ,Pediatrics ,RJ1-570 - Abstract
Abstract Objectives: To report epidemiological features, clinical characteristics, and outcomes of human rhinovirus (HRV) infections in comparison with other community acquired respiratory virus (CRV) infections in patients hospitalized for two consecutive years. Methods: This was a cross-sectional study. Clinical, epidemiological, and laboratory data of patients hospitalized with acute respiratory syndrome in a tertiary care hospital from 2012 to 2013 were reviewed. Results: HRV was the most common CRV observed (36%, 162/444) and was present in the majority of viral co-detections (69%, 88/128), mainly in association with human enterovirus (45%). Most HRV-infected patients were younger than 2 years (57%). Overall, patients infected with HRV had a lower frequency of severe acute respiratory infection than those infected with other CRVs (60% and 84%, respectively, p = 0.006), but had more comorbidities (40% and 27%, respectively; p = 0.043). However, in the adjusted analysis this association was not significant. The mortality rate within the HRV group was 3%. Detection of HRV was more prevalent during autumn and winter, with a moderately negative correlation between viral infection frequency and temperature (r = −0.636, p < 0.001) but no correlation with rainfall (r = −0.036, p = 0.866). Conclusion: HRV is usually detected in hospitalized children with respiratory infections and is often present in viral co-detections. Comorbidities are closely associated with HRV infections. These infections show seasonal variation, with predominance during colder seasons.
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7. Rinovírus humano em infecções respiratórias agudas em crianças menores de cinco anos de idade: fatores envolvidos no agravamento da doença
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Costa, Lourenço Faria, Vieira, Carlos Ueira, Yokosawa, Jonny, Jorge, Miguel Tanús, Maia, Yara Cristina de Paiva, Candeias, João Manuel Grisi, Ferro, Eloisa Amália Vieira, and Domingues, André Luiz da Silva
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Caracterização molecular ,CIENCIAS BIOLOGICAS::IMUNOLOGIA::IMUNOLOGIA APLICADA [CNPQ] ,Rinovírus humano ,Fatores de risco ,Risk factors ,Co-infecção ,Human rhinovirus ,Molecular characterization ,Co-infection - Abstract
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior Although human rhinoviruses (HRV) have been shown to cause common cold, they are increasingly found in severe respiratory infections. Whether or not disease severity may be increased by the presence of a second virus or comorbidities was investigated, such as the HRV frequency. By using IFA and/or RT-PCR we tested 434 nasopharyngeal aspirates from children less than five years old presenting acute respiratory disease for presence of HRV, respiratory syncytial virus (RSV), influenza virus, parainfluenza virus, adenovirus and human metapneumovirus. HRV was characterized through VP4 genome analysis. Thus, at least one virus was detected in 384 samples and HRV was detected in 181 (41.7%) samples: in 107 as the single agent and in 74 with another virus. Moderate-to-severe cases rose significantly in co-infections (p=0.0070). However, RSV, which causes severe disease, was found in 32 co-infections. By removing these cases, moderate-to-severe cases in co-infections reduced to 35.7% (15/42), which is similar to the frequency found in single infections. Similar results was observed according to symptoms, in which URT involvement predominated in HRV single infections. Nevertheless, HRV was responsible for a considerable number of bronchiolitis and wheezing symptoms. Presence of comorbidities, specially early age, prematurity and congenital heart diseases, in single infections rose from 46.6% (34/73) in mild cases to 79.4% (27/34) in moderate-to-severe cases (p=0.0014). From 42 characterized HRV species, HRV-A and HRV-C presented similar proportions (21 and 19, respectively) with no difference of clinical severity. Two enterovirus, poliovirus and echovirus, were also identified. Despite HRV was related mostly with mild symptoms, our results showed that HRV were a very frequent respiratory agent found in many moderate-to-severe cases. The presence of another virus, except for RSV, may not be associated with increased disease severity, which may rather be caused by presence of comorbidities and by the HRV infection itself. We also did not found relation of increasing disease severity according to specie. Finally, we call attention for the possibility of enterovirus detection in RT-PCR HRV investigation, emphasizing the importance of molecular characterization of HRV. Further efforts must be done in attempt to include breast feeding and atopic diseases in parents to accurately evaluate other risk factors of developing severe respiratory disease by HRV infections, and include more samples in the molecular characterization of these agents. Apesar dos rinovírus humanos (HRV) serem mais relacionados com resfriado comum, esses agentes também estão associados com infecções respiratórias graves. Os possíveis fatores que levariam ao agravamento das doenças respiratórias pelos HRV foram investigados neste estudo, assim como a frequência desses vírus. A IFI e/ou RT-PCR foram utilizadas para testar 434 aspirados de nasofaringe de crianças menores de cinco anos de idade para identificar a presença do HRV, juntamente com vírus respiratório sincicial (VRS), vírus influenza, vírus parainfluenza, adenovírus e metapneumovirus. As espécies dos HRV foram identificadas através da análise da região genômica VP4. Pelo menos um vírus foi detectado em 383 amostras, sendo o HRV identificado em 181 (41,7%) amostras: 107 como único agente e 74 em co-infecções. A proporção de infecções moderadas a graves em relação às brandas, em infecções simples, aumentou comparando-se com co-infecções (p=0,0070). Entretanto, o VRS é reconhecidamente um agente causador de doenças respiratórias graves em crianças, sendo encontrado em 32 co-infecções com os HRV. Removendo esses casos, as infecções moderadas a graves foram reduzidas para 35,7% (15/42), o que foi similar com a frequência encontrada em infecções simples pelos HRV. Resultados similares foram observados para os tipos de sintomas, onde para os HRV predominou sintomas do TRS, embora houvesse um número significativo de casos de bronquiolite, pneumonia e bronquite sibilante. A presença de fatores de risco, incluindo tenra idade, prematuridade, doenças respiratórias não infecciosas e principalmente doenças congênitas cardíacas em infecções simples, aumentou de 46,6% (34/73) em casos brandos para 79,4% (27/34) em infecções moderadas a graves em infecções simples pelos HRV (p=0,0014). Das 42 espécies identificadas, os HRV A e C apresentaram proporções e gravidade clínica similares. Dois enterovírus, um poliovírus e um echovírus, também foram identificados. Nossos resultados mostraram que apesar dos HRV estarem relacionados principalmente com casos de doença branda, esses vírus foram muito frequentes e relacionados com uma quantidade significativa de casos moderados a graves em infecções simples. A presença de um segundo vírus respiratório, com exceção do VRS, pode não estar associada com um aumento da gravidade clínica, o que pode estar mais relacionado presença de fatores de risco. Em adição, não foi constatado maior gravidade dos sintomas pelo HRV relacionado à espécie. Chamamos a atenção para a possibilidade de detecção de enterovírus através do uso da RT-PCR, enfatizando a importância da caracterização molecular dos HRV. Futuramente, outros fatores de risco poderiam ser incluídos para avaliação mais detalhada das causas do paciente que poderiam levar a doenças mais graves frente a infecções pelos HRV, além de ampliar o estudo de caracterização molecular desses vírus através do aumento do número de amostras sequenciadas. Doutor em Imunologia e Parasitologia Aplicadas
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- 2012
8. Etiologia viral de infec?o respirat?ia aguda entre idosos, durante a temporada de gripe
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Aripuanã Sakurada Aranha Watanabe, Nancy Bellei, Maria Rita Donalisio, Élcio Leal, Emerson Carraro, Celso Francisco Hernandes Granato, João Manuelo Grisi Candeias, Universidade Federal de São Paulo (UNIFESP), Universidade Estadual Paulista (Unesp), Universidade Estadual de Campinas (UNICAMP), Fed Univ Para, São Paulo Federal University, Universidade Estadual Paulista (UNESP), and Universidade Federal do Pará (UFPA)
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Male ,Rinovírus humano ,Rhinovirus ,Reação em cadeia da polimerase ,medicine.disease_cause ,Human rhinovirus ,Group B ,Idosos ,Elderly ,Genescan RT-PCR ,Medicine ,Prospective Studies ,Respiratory system ,Respiratory Tract Infections ,Phylogeny ,Aged, 80 and over ,education.field_of_study ,Respiratory tract infections ,Reverse Transcriptase Polymerase Chain Reaction ,Incidence ,Respiratory infection ,virus diseases ,Middle Aged ,Orthomyxoviridae ,Respiratory Syncytial Viruses ,Infectious Diseases ,Acute Disease ,Reverse transcription polymerase chain reaction ,Female ,Seasons ,Brazil ,Microbiology (medical) ,Infecções respiratórias ,medicine.medical_specialty ,lcsh:Arctic medicine. Tropical medicine ,lcsh:RC955-962 ,Population ,Virus ,stomatognathic system ,Internal medicine ,Humans ,education ,Aged ,Respiratory viruses ,business.industry ,Influenza A/B ,Viroses respiratórias ,Immunology ,Etiology ,CIENCIAS BIOLOGICAS::MICROBIOLOGIA::BIOLOGIA E FISIOLOGIA DOS MICROORGANISMOS::VIROLOGIA [CNPQ] ,Parasitology ,Metapneumovirus ,business - Abstract
Made available in DSpace on 2013-08-12T18:58:19Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-01-01 Made available in DSpace on 2013-09-30T18:38:25Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-01-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:51:06Z No. of bitstreams: 0 Made available in DSpace on 2014-05-20T13:51:06Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-01-01 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Introdução: Infecções agudas do trato respiratório estão entre as doenças mais comuns em todas as pessoas. Os rinovírus têm sido descritos como agente etiológico de mais de 50% das infecções do trato respiratório ao redor do mundo. O objetivo deste trabalho foi avaliar a ocorrência de rinovírus humano (HRV), influenza vírus A e B, vírus respiratório sincicial humano e metapneumovírus (hMPV) em uma população de idosos que apresentava sintomas de gripe ou resfriado, e que residiam na Cidade de Botucatu, Estado de São Paulo, Brasil. Métodos: Foram coletados swabs nasais de 47 idosos após visitas de inclusão, entre os anos de 2002 e 2003 e que foram testadas através de GeneScan RT-PCR. Resultados: HRV foi detectado em 28.6% (14/47) e hMPV em 2% (1/47). De 14 amostras positivas para HRV, 9 foram sequenciadas, mostrando a seguinte distribuição de grupos: grupo A: 6 amostras, grupo B: 1 amostra e grupo C: 2 amostras. Conclusões: A alta incidência de HRV durante os meses de ocorrência de gripe necessita de estudos posteriores para avaliar o impacto desse vírus entre os idosos. A alta frequência de HRV pode contribuir para o aumento da demanda por serviços de saúde durante a estação de influenza. Introduction: Acute respiratory tract infections are the most common illness in all individuals. Rhinoviruses have been reported as the etiology of more than 50% of respiratory tract infections worldwide. The study prospectively evaluated 47 elderly individuals from a group of 384 randomly assigned for acute respiratory viral infections (cold or flu) and assessed the occurrence of human rhinovirus (HRV), influenza A and B, respiratory syncytial virus and metapneumovirus (hMPV) in Botucatu, State of São Paulo, Brazil. Methods: Forty-nine nasal swabs collected from 47 elderly individuals following inclusion visits from 2002 to 2003 were tested by GenScan RT-PCR. HRV-positive samples were sequenced for phylogenetic analysis. Results: No sample was positive for influenza A/B or RSV. HRV was detected in 28.6% (14/47) and hMPV in 2% (1/47). of 14 positive samples, 9 isolates were successfully sequenced, showing the follow group distribution: 6 group A, 1 group B and 2 group C HRVs. Conclusions: The high incidence of HRV during the months of the influenza season requires further study regarding HRV infection impact on respiratory complications among this population. Infection caused by HRV is very frequent and may contribute to increasing the already high demand for healthcare during the influenza season. Univ Fed São Paulo, Dept Med, Infect Dis Unit, Clin Virol Lab, São Paulo, Brazil São Paulo State Univ, Biosci Inst, Human & Anim Virol Lab, Botucatu, SP, Brazil Univ Estadual Campinas, Med Sci Coll, Campinas, SP, Brazil Fed Univ Para, Inst Biotechnol, BR-66059 Belem, Para, Brazil São Paulo State Univ, Biosci Inst, Human & Anim Virol Lab, Botucatu, SP, Brazil
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