GrippeBresilV1, Main, Exploration, bibRecord, 000321

Sentinel surveillance of influenza and other respiratory viruses, Brazil, 2000-2010.

Identifieur interne : 000321 ( Main/Exploration ); précédent : 000320; suivant : 000322

Sentinel surveillance of influenza and other respiratory viruses, Brazil, 2000-2010.

Auteurs : Felipe Teixeira De Mello Freitas [Brésil]

Source :

The Brazilian journal of infectious diseases : an official publication of the Brazilian Society of Infectious Diseases [ 1678-4391 ]

RBID : pubmed:23287541

Descripteurs français

English descriptors

KwdEn :
- Adenovirus Infections, Human (epidemiology), Adenovirus Infections, Human (virology), Adolescent, Adult, Brazil (epidemiology), Child, Child, Preschool, Female, Fluorescent Antibody Technique, Indirect, Humans, Infant, Infant, Newborn, Influenza, Human (epidemiology), Influenza, Human (virology), Male, Middle Aged, Nasopharynx (virology), Paramyxoviridae Infections (epidemiology), Paramyxoviridae Infections (virology), Real-Time Polymerase Chain Reaction, Respiratory Syncytial Virus Infections (epidemiology), Respiratory Syncytial Virus Infections (virology), Seasons, Sentinel Surveillance, Young Adult.
MESH :
- geographic , epidemiology : Brazil.
- epidemiology : Adenovirus Infections, Human, Influenza, Human, Paramyxoviridae Infections, Respiratory Syncytial Virus Infections.
- virology : Adenovirus Infections, Human, Influenza, Human, Nasopharynx, Paramyxoviridae Infections, Respiratory Syncytial Virus Infections.
- Adolescent, Adult, Child, Child, Preschool, Female, Fluorescent Antibody Technique, Indirect, Humans, Infant, Infant, Newborn, Male, Middle Aged, Real-Time Polymerase Chain Reaction, Seasons, Sentinel Surveillance, Young Adult.

Abstract

There are scanty data on the epidemiology of influenza and other respiratory viruses in South America and Brazil. The aim of this study was to summarize the data from the Brazilian surveillance system of influenza and other respiratory viruses and discuss the patterns of viral circulation. The system is based on detecting cases of influenza-like illness in sentinel sites and weekly collection of five nasopharyngeal secretions samples, which are processed in state public health laboratories for respiratory viruses by indirect immunofluorescence assay. Data from 2000 to 2010 were described over time, by region, gender, and age group, and an analysis of Spearman correlation was performed between monthly influenza detection and rainfall and temperature data in two state capitals with the highest number of positive samples, one from the northeast region (Maceió) and other from the southern region (Curitiba). There were 3,291,946 visits for influenza-like illness; of these, 37,120 had samples collected and 6421 tested positive: 1690 (26%) influenza A, 567 (9%) influenza B, 277 (4%) parainfluenza 1, 571 (9%) parainfluenza 2, 589 (9%) parainfluenza 3, 742 (12%) adenovirus, and 1985 (31%) respiratory syncytial virus. Overall, increased activity of respiratory syncytial virus was observed from March to June, preceding the peak of influenza activity, from May to August, but with regional differences. In Maceió, there was a weak correlation between temperature and influenza detection (ρ=0.05), but a moderate positive correlation between rainfall and influenza detection (ρ=0.36). In Curitiba, a high correlation was observed between the decrease in temperature and rainfall and the increase in influenza detection (ρ=-0.83 and -0.78 respectively). These data are important to guide public health control measures as the best time for influenza vaccination and use of antivirals.

DOI: 10.1016/j.bjid.2012.09.001
PubMed: 23287541

Affiliations:

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Le document en format XML

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<front><div type="abstract" xml:lang="en">There are scanty data on the epidemiology of influenza and other respiratory viruses in South America and Brazil. The aim of this study was to summarize the data from the Brazilian surveillance system of influenza and other respiratory viruses and discuss the patterns of viral circulation. The system is based on detecting cases of influenza-like illness in sentinel sites and weekly collection of five nasopharyngeal secretions samples, which are processed in state public health laboratories for respiratory viruses by indirect immunofluorescence assay. Data from 2000 to 2010 were described over time, by region, gender, and age group, and an analysis of Spearman correlation was performed between monthly influenza detection and rainfall and temperature data in two state capitals with the highest number of positive samples, one from the northeast region (Maceió) and other from the southern region (Curitiba). There were 3,291,946 visits for influenza-like illness; of these, 37,120 had samples collected and 6421 tested positive: 1690 (26%) influenza A, 567 (9%) influenza B, 277 (4%) parainfluenza 1, 571 (9%) parainfluenza 2, 589 (9%) parainfluenza 3, 742 (12%) adenovirus, and 1985 (31%) respiratory syncytial virus. Overall, increased activity of respiratory syncytial virus was observed from March to June, preceding the peak of influenza activity, from May to August, but with regional differences. In Maceió, there was a weak correlation between temperature and influenza detection (ρ=0.05), but a moderate positive correlation between rainfall and influenza detection (ρ=0.36). In Curitiba, a high correlation was observed between the decrease in temperature and rainfall and the increase in influenza detection (ρ=-0.83 and -0.78 respectively). These data are important to guide public health control measures as the best time for influenza vaccination and use of antivirals.</div>
</front>
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<JournalIssue CitedMedium="Internet"><Volume>17</Volume>
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<Title>The Brazilian journal of infectious diseases : an official publication of the Brazilian Society of Infectious Diseases</Title>
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<ArticleTitle>Sentinel surveillance of influenza and other respiratory viruses, Brazil, 2000-2010.</ArticleTitle>
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<Abstract><AbstractText>There are scanty data on the epidemiology of influenza and other respiratory viruses in South America and Brazil. The aim of this study was to summarize the data from the Brazilian surveillance system of influenza and other respiratory viruses and discuss the patterns of viral circulation. The system is based on detecting cases of influenza-like illness in sentinel sites and weekly collection of five nasopharyngeal secretions samples, which are processed in state public health laboratories for respiratory viruses by indirect immunofluorescence assay. Data from 2000 to 2010 were described over time, by region, gender, and age group, and an analysis of Spearman correlation was performed between monthly influenza detection and rainfall and temperature data in two state capitals with the highest number of positive samples, one from the northeast region (Maceió) and other from the southern region (Curitiba). There were 3,291,946 visits for influenza-like illness; of these, 37,120 had samples collected and 6421 tested positive: 1690 (26%) influenza A, 567 (9%) influenza B, 277 (4%) parainfluenza 1, 571 (9%) parainfluenza 2, 589 (9%) parainfluenza 3, 742 (12%) adenovirus, and 1985 (31%) respiratory syncytial virus. Overall, increased activity of respiratory syncytial virus was observed from March to June, preceding the peak of influenza activity, from May to August, but with regional differences. In Maceió, there was a weak correlation between temperature and influenza detection (ρ=0.05), but a moderate positive correlation between rainfall and influenza detection (ρ=0.36). In Curitiba, a high correlation was observed between the decrease in temperature and rainfall and the increase in influenza detection (ρ=-0.83 and -0.78 respectively). These data are important to guide public health control measures as the best time for influenza vaccination and use of antivirals.</AbstractText>
<CopyrightInformation>Copyright © 2013 Elsevier Editora Ltda. All rights reserved.</CopyrightInformation>
</Abstract>
<AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Freitas</LastName>
<ForeName>Felipe Teixeira de Mello</ForeName>
<Initials>FT</Initials>
<AffiliationInfo><Affiliation>Ministério da Saúde, Secretaria de Vigilância em Saúde, Coordenação Geral de Doenças Transmissíveis, Brasília, DF, Brazil. felipetmf@gmail.com</Affiliation>
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Sentinel surveillance of influenza and other respiratory viruses, Brazil, 2000-2010.

Sentinel surveillance of influenza and other respiratory viruses, Brazil, 2000-2010.

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

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