Três anos de estudo soroepidemiológico do vírus varicela-zoster em São Paulo, Brasil
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Publication Date: | 2000 |
Other Authors: | , , , , , , , |
Format: | Article |
Language: | eng |
Source: | Revista do Instituto de Medicina Tropical de São Paulo |
Download full: | https://www.revistas.usp.br/rimtsp/article/view/30421 |
Summary: | A serosurvey of varicella has been carried out in children attending the public school network of São Paulo city, Brazil, from 1992 to 1994. This study was performed in order to establish the age related prevalence of antibodies against varicella-zoster virus (VZV) and its age specific transmission dynamics pattern in these children. Among 2500 schools in the city of São Paulo public network, 304 were randomly selected; 7 children of a given age (ranging from 1 to 15 years) were randomly selected in each school, and blood samples were obtained by fingerprick into filter paper. Blood eluates were analyzed for the presence of antibodies to VZV by ELISA. Proportion of seropositivity were calculated for each age group. Samples consisted of 1768 individuals in 1992, 1758 in 1993, and 1817 in 1994, resulting in 5343 eluates. A high proportion of seropositive children from 1 to 3 years of age was observed, ascending until 10 years of age and reaching a plateau around 90% afterwards. VZV transmission in this community was similar along the three years of the study. In children attending public schools in the city of São Paulo, contact with VZV occurs in early childhood. If immunization against VZV is considered it should be introduced as soon as possible. |
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Três anos de estudo soroepidemiológico do vírus varicela-zoster em São Paulo, Brasil Three year seroepidemiological study of varicella-zoster virus in São Paulo, Brazil VariceSeroprevaleVaccinatSão PaBra A serosurvey of varicella has been carried out in children attending the public school network of São Paulo city, Brazil, from 1992 to 1994. This study was performed in order to establish the age related prevalence of antibodies against varicella-zoster virus (VZV) and its age specific transmission dynamics pattern in these children. Among 2500 schools in the city of São Paulo public network, 304 were randomly selected; 7 children of a given age (ranging from 1 to 15 years) were randomly selected in each school, and blood samples were obtained by fingerprick into filter paper. Blood eluates were analyzed for the presence of antibodies to VZV by ELISA. Proportion of seropositivity were calculated for each age group. Samples consisted of 1768 individuals in 1992, 1758 in 1993, and 1817 in 1994, resulting in 5343 eluates. A high proportion of seropositive children from 1 to 3 years of age was observed, ascending until 10 years of age and reaching a plateau around 90% afterwards. VZV transmission in this community was similar along the three years of the study. In children attending public schools in the city of São Paulo, contact with VZV occurs in early childhood. If immunization against VZV is considered it should be introduced as soon as possible. Um estudo sorológico para varicela foi realizado em crianças matriculadas na rede pública de ensino da cidade de São Paulo, Brasil, entre 1992 e 1994. O objetivo deste estudo foi determinar a soroprevalência idade-dependente de anticorpos contra o vírus varicela-zoster (VVZ) e definir sua dinâmica de transmissão nestas crianças. Foram selecionadas, ao acaso, 304 escolas entre os 2500 equipamentos da Rede Pública de Educação e Bem Estar Social na cidade de São Paulo; foram sorteadas em cada escola 7 crianças de determinada idade (de 1 a 15 anos), e o sangue colhido em papel de filtro. Os eluatos foram avaliados para anticorpos contra o vírus varicela zoster através de técnica de ELISA. A proporção de soropositivos para cada faixa etária foi calculada. Foram obtidas 1768 amostras em 1992, 1758 em 1993 e 1817 em 1994, resultando em 5343 eluatos. Observou-se alta proporção de soropositivos no intervalo etário de 1 a 3 anos de idade, ascendendo até os 10 anos, mantendo-se ao redor de 90% a partir desta idade. O padrão de transmissão do VVZ nesta comunidade é semelhante ao longo dos 3 anos estudados. Nas crianças frequentadoras das escolas públicas da cidade de São Paulo, o contacto com o VVZ ocorre no início da infância. Considerando-se a possibilidade de introdução da imunização contra a varicela, ela deve ocorrer o mais cedo possível. Universidade de São Paulo. Instituto de Medicina Tropical de São Paulo2000-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/rimtsp/article/view/30421Revista do Instituto de Medicina Tropical de São Paulo; Vol. 42 No. 3 (2000); 125-128 Revista do Instituto de Medicina Tropical de São Paulo; Vol. 42 Núm. 3 (2000); 125-128 Revista do Instituto de Medicina Tropical de São Paulo; v. 42 n. 3 (2000); 125-128 1678-99460036-4665reponame:Revista do Instituto de Medicina Tropical de São Pauloinstname:Instituto de Medicina Tropical (IMT)instacron:IMTenghttps://www.revistas.usp.br/rimtsp/article/view/30421/32305Copyright (c) 2018 Revista do Instituto de Medicina Tropical de São Pauloinfo:eu-repo/semantics/openAccessYU, Ana Lúcia FrugisCOSTA, Jane MargareteAMAKU, MarcosPANNUTI, Cláudio SérgioSOUZA, Vanda Akico Ueda Fick deZANETTA, Dirce Maria TrevisanBURATTINI, Marcelo NascimentoMASSAD, EduardoAZEVEDO, Raymundo Soares2012-07-07T09:34:20Zoai:revistas.usp.br:article/30421Revistahttp://www.revistas.usp.br/rimtsp/indexPUBhttps://www.revistas.usp.br/rimtsp/oai||revimtsp@usp.br1678-99460036-4665opendoar:2022-12-13T16:51:11.525093Revista do Instituto de Medicina Tropical de São Paulo - Instituto de Medicina Tropical (IMT)true |
dc.title.none.fl_str_mv |
Três anos de estudo soroepidemiológico do vírus varicela-zoster em São Paulo, Brasil Three year seroepidemiological study of varicella-zoster virus in São Paulo, Brazil |
title |
Três anos de estudo soroepidemiológico do vírus varicela-zoster em São Paulo, Brasil |
spellingShingle |
Três anos de estudo soroepidemiológico do vírus varicela-zoster em São Paulo, Brasil YU, Ana Lúcia Frugis Varice Seroprevale Vaccinat São Pa Bra |
title_short |
Três anos de estudo soroepidemiológico do vírus varicela-zoster em São Paulo, Brasil |
title_full |
Três anos de estudo soroepidemiológico do vírus varicela-zoster em São Paulo, Brasil |
title_fullStr |
Três anos de estudo soroepidemiológico do vírus varicela-zoster em São Paulo, Brasil |
title_full_unstemmed |
Três anos de estudo soroepidemiológico do vírus varicela-zoster em São Paulo, Brasil |
title_sort |
Três anos de estudo soroepidemiológico do vírus varicela-zoster em São Paulo, Brasil |
author |
YU, Ana Lúcia Frugis |
author_facet |
YU, Ana Lúcia Frugis COSTA, Jane Margarete AMAKU, Marcos PANNUTI, Cláudio Sérgio SOUZA, Vanda Akico Ueda Fick de ZANETTA, Dirce Maria Trevisan BURATTINI, Marcelo Nascimento MASSAD, Eduardo AZEVEDO, Raymundo Soares |
author_role |
author |
author2 |
COSTA, Jane Margarete AMAKU, Marcos PANNUTI, Cláudio Sérgio SOUZA, Vanda Akico Ueda Fick de ZANETTA, Dirce Maria Trevisan BURATTINI, Marcelo Nascimento MASSAD, Eduardo AZEVEDO, Raymundo Soares |
author2_role |
author author author author author author author author |
dc.contributor.author.fl_str_mv |
YU, Ana Lúcia Frugis COSTA, Jane Margarete AMAKU, Marcos PANNUTI, Cláudio Sérgio SOUZA, Vanda Akico Ueda Fick de ZANETTA, Dirce Maria Trevisan BURATTINI, Marcelo Nascimento MASSAD, Eduardo AZEVEDO, Raymundo Soares |
dc.subject.por.fl_str_mv |
Varice Seroprevale Vaccinat São Pa Bra |
topic |
Varice Seroprevale Vaccinat São Pa Bra |
description |
A serosurvey of varicella has been carried out in children attending the public school network of São Paulo city, Brazil, from 1992 to 1994. This study was performed in order to establish the age related prevalence of antibodies against varicella-zoster virus (VZV) and its age specific transmission dynamics pattern in these children. Among 2500 schools in the city of São Paulo public network, 304 were randomly selected; 7 children of a given age (ranging from 1 to 15 years) were randomly selected in each school, and blood samples were obtained by fingerprick into filter paper. Blood eluates were analyzed for the presence of antibodies to VZV by ELISA. Proportion of seropositivity were calculated for each age group. Samples consisted of 1768 individuals in 1992, 1758 in 1993, and 1817 in 1994, resulting in 5343 eluates. A high proportion of seropositive children from 1 to 3 years of age was observed, ascending until 10 years of age and reaching a plateau around 90% afterwards. VZV transmission in this community was similar along the three years of the study. In children attending public schools in the city of São Paulo, contact with VZV occurs in early childhood. If immunization against VZV is considered it should be introduced as soon as possible. |
publishDate |
2000 |
dc.date.none.fl_str_mv |
2000-06-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://www.revistas.usp.br/rimtsp/article/view/30421 |
url |
https://www.revistas.usp.br/rimtsp/article/view/30421 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://www.revistas.usp.br/rimtsp/article/view/30421/32305 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2018 Revista do Instituto de Medicina Tropical de São Paulo info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2018 Revista do Instituto de Medicina Tropical de São Paulo |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade de São Paulo. Instituto de Medicina Tropical de São Paulo |
publisher.none.fl_str_mv |
Universidade de São Paulo. Instituto de Medicina Tropical de São Paulo |
dc.source.none.fl_str_mv |
Revista do Instituto de Medicina Tropical de São Paulo; Vol. 42 No. 3 (2000); 125-128 Revista do Instituto de Medicina Tropical de São Paulo; Vol. 42 Núm. 3 (2000); 125-128 Revista do Instituto de Medicina Tropical de São Paulo; v. 42 n. 3 (2000); 125-128 1678-9946 0036-4665 reponame:Revista do Instituto de Medicina Tropical de São Paulo instname:Instituto de Medicina Tropical (IMT) instacron:IMT |
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Instituto de Medicina Tropical (IMT) |
instacron_str |
IMT |
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IMT |
reponame_str |
Revista do Instituto de Medicina Tropical de São Paulo |
collection |
Revista do Instituto de Medicina Tropical de São Paulo |
repository.name.fl_str_mv |
Revista do Instituto de Medicina Tropical de São Paulo - Instituto de Medicina Tropical (IMT) |
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||revimtsp@usp.br |
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1798951642365689856 |