Outbreak of dengue in Ipupiara and Prado, Bahia State. Seroepidemiologic survey
Main Author: | |
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Publication Date: | 2000 |
Other Authors: | , , , , |
Format: | Article |
Language: | eng |
Source: | Repositório Digital do Instituto Evandro Chagas (Patuá) |
Download full: | https://patua.iec.gov.br/handle/iec/4380 |
Summary: | Serologic studies in Brazil have indicated a 25% to 56% prevalence of dengue virus infections. However, these studies were carried out in populations of middle-sized and larger cities. The present study describes two epidemics of classic dengue fever in two small cities in the State of Bahia. The first occurred in 1987, in Ipupiara and was caused by dengue serotype-1 (DEN-1), the second occurred in 1995, in Prado and was caused by dengue serotype-2 (DEN-2). The laboratory diagnosis was made by the hemagglutination-inhibitation test. 461 serum samples were collected in 1995 in Ipupiara (district of Chapada Diamantina) out of a population of 3,868 and 228 samples out of a total of 9,126 inhabitants of Prado (in the Southernmost coastal region). The seropositivity of the samples was 11.9% (55/461) in Ipupiara and 17.5% (40/228) in Prado. These were no statistically significant differences as to age and sex between seropositive and seronegative individuals of the two cities studied. However, the seropositive cases in Ipupiara indicated a higher percentage (15.9% vs. 9.3%) of residency in or travel to other states of Brazil (p<0.03). Based on these data we estimate the occurrence of 460 and 1,597 cases of infection in Ipupiara and Prado, respectively. In conclusion, dengue virus infections in smaller cities probably have singular characteristics, since they exhibit a lesser prevalence of seropositivity caused by decreased breeding possibilities of Aedes aegypti. |
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Vasconcelos, Pedro Fernando da CostaMota, KarlaStraatmann, AndréaSantos-Torres, SandroRosa, Amélia Paes de Andrade Travassos daTavares Neto, José2021-07-21T19:37:45Z2021-07-21T19:37:45Z2000VASCONCELOS, Pedro Fernando da Costa et al. Outbreak of dengue in Ipupiara and Prado, Bahia State. Seroepidemiologic survey. Revista da Sociedade Brasileira de Medicina Tropical, v. 33, n. 1, p. 61-67, jan./fev. 2000.1678-9849https://patua.iec.gov.br/handle/iec/438010.1590/S0037-86822000000100009Serologic studies in Brazil have indicated a 25% to 56% prevalence of dengue virus infections. However, these studies were carried out in populations of middle-sized and larger cities. The present study describes two epidemics of classic dengue fever in two small cities in the State of Bahia. The first occurred in 1987, in Ipupiara and was caused by dengue serotype-1 (DEN-1), the second occurred in 1995, in Prado and was caused by dengue serotype-2 (DEN-2). The laboratory diagnosis was made by the hemagglutination-inhibitation test. 461 serum samples were collected in 1995 in Ipupiara (district of Chapada Diamantina) out of a population of 3,868 and 228 samples out of a total of 9,126 inhabitants of Prado (in the Southernmost coastal region). The seropositivity of the samples was 11.9% (55/461) in Ipupiara and 17.5% (40/228) in Prado. These were no statistically significant differences as to age and sex between seropositive and seronegative individuals of the two cities studied. However, the seropositive cases in Ipupiara indicated a higher percentage (15.9% vs. 9.3%) of residency in or travel to other states of Brazil (p<0.03). Based on these data we estimate the occurrence of 460 and 1,597 cases of infection in Ipupiara and Prado, respectively. In conclusion, dengue virus infections in smaller cities probably have singular characteristics, since they exhibit a lesser prevalence of seropositivity caused by decreased breeding possibilities of Aedes aegypti.Ministério da Saúde. Fundação Nacional de Saúde. Instituto Evandro Chagas. Belém, PA, Brasil.Universidade Federal da Bahia. Hospital Universitário. Unidade Docente-Assistencial em Infectologia. Laboratório de Genética Médica. Salvador, BA, Brasil.Universidade Federal da Bahia. Faculdade de Medicina. Salvador, BA, Brasil.Ministério da Saúde. Fundação Nacional de Saúde. Instituto Evandro Chagas. Belém, PA, Brasil.Ministério da Saúde. Fundação Nacional de Saúde. Instituto Evandro Chagas. Belém, PA, Brasil.Universidade Federal da Bahia. Hospital Universitário Prof. Edgard Santos. Salvador, BA, Brasil.engSociedade Brasileira de Medicina TropicalOutbreak of dengue in Ipupiara and Prado, Bahia State. Seroepidemiologic surveyEpidemia de dengue em Ipupiara e Prado, Bahia. 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dc.title.pt_BR.fl_str_mv |
Outbreak of dengue in Ipupiara and Prado, Bahia State. Seroepidemiologic survey |
dc.title.alternative.pt_BR.fl_str_mv |
Epidemia de dengue em Ipupiara e Prado, Bahia. Inquérito soro-epidemiológico |
title |
Outbreak of dengue in Ipupiara and Prado, Bahia State. Seroepidemiologic survey |
spellingShingle |
Outbreak of dengue in Ipupiara and Prado, Bahia State. Seroepidemiologic survey Vasconcelos, Pedro Fernando da Costa Dengue / epidemiologia Inquéritos Epidemiológicos Vírus da Dengue / patogenicidade Salvador (BA) Ipupiara (BA) Prado (BA) |
title_short |
Outbreak of dengue in Ipupiara and Prado, Bahia State. Seroepidemiologic survey |
title_full |
Outbreak of dengue in Ipupiara and Prado, Bahia State. Seroepidemiologic survey |
title_fullStr |
Outbreak of dengue in Ipupiara and Prado, Bahia State. Seroepidemiologic survey |
title_full_unstemmed |
Outbreak of dengue in Ipupiara and Prado, Bahia State. Seroepidemiologic survey |
title_sort |
Outbreak of dengue in Ipupiara and Prado, Bahia State. Seroepidemiologic survey |
author |
Vasconcelos, Pedro Fernando da Costa |
author_facet |
Vasconcelos, Pedro Fernando da Costa Mota, Karla Straatmann, Andréa Santos-Torres, Sandro Rosa, Amélia Paes de Andrade Travassos da Tavares Neto, José |
author_role |
author |
author2 |
Mota, Karla Straatmann, Andréa Santos-Torres, Sandro Rosa, Amélia Paes de Andrade Travassos da Tavares Neto, José |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Vasconcelos, Pedro Fernando da Costa Mota, Karla Straatmann, Andréa Santos-Torres, Sandro Rosa, Amélia Paes de Andrade Travassos da Tavares Neto, José |
dc.subject.decsPrimary.pt_BR.fl_str_mv |
Dengue / epidemiologia Inquéritos Epidemiológicos Vírus da Dengue / patogenicidade Salvador (BA) Ipupiara (BA) Prado (BA) |
topic |
Dengue / epidemiologia Inquéritos Epidemiológicos Vírus da Dengue / patogenicidade Salvador (BA) Ipupiara (BA) Prado (BA) |
description |
Serologic studies in Brazil have indicated a 25% to 56% prevalence of dengue virus infections. However, these studies were carried out in populations of middle-sized and larger cities. The present study describes two epidemics of classic dengue fever in two small cities in the State of Bahia. The first occurred in 1987, in Ipupiara and was caused by dengue serotype-1 (DEN-1), the second occurred in 1995, in Prado and was caused by dengue serotype-2 (DEN-2). The laboratory diagnosis was made by the hemagglutination-inhibitation test. 461 serum samples were collected in 1995 in Ipupiara (district of Chapada Diamantina) out of a population of 3,868 and 228 samples out of a total of 9,126 inhabitants of Prado (in the Southernmost coastal region). The seropositivity of the samples was 11.9% (55/461) in Ipupiara and 17.5% (40/228) in Prado. These were no statistically significant differences as to age and sex between seropositive and seronegative individuals of the two cities studied. However, the seropositive cases in Ipupiara indicated a higher percentage (15.9% vs. 9.3%) of residency in or travel to other states of Brazil (p<0.03). Based on these data we estimate the occurrence of 460 and 1,597 cases of infection in Ipupiara and Prado, respectively. In conclusion, dengue virus infections in smaller cities probably have singular characteristics, since they exhibit a lesser prevalence of seropositivity caused by decreased breeding possibilities of Aedes aegypti. |
publishDate |
2000 |
dc.date.issued.fl_str_mv |
2000 |
dc.date.accessioned.fl_str_mv |
2021-07-21T19:37:45Z |
dc.date.available.fl_str_mv |
2021-07-21T19:37:45Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
VASCONCELOS, Pedro Fernando da Costa et al. Outbreak of dengue in Ipupiara and Prado, Bahia State. Seroepidemiologic survey. Revista da Sociedade Brasileira de Medicina Tropical, v. 33, n. 1, p. 61-67, jan./fev. 2000. |
dc.identifier.uri.fl_str_mv |
https://patua.iec.gov.br/handle/iec/4380 |
dc.identifier.issn.-.fl_str_mv |
1678-9849 |
dc.identifier.doi.-.fl_str_mv |
10.1590/S0037-86822000000100009 |
identifier_str_mv |
VASCONCELOS, Pedro Fernando da Costa et al. Outbreak of dengue in Ipupiara and Prado, Bahia State. Seroepidemiologic survey. Revista da Sociedade Brasileira de Medicina Tropical, v. 33, n. 1, p. 61-67, jan./fev. 2000. 1678-9849 10.1590/S0037-86822000000100009 |
url |
https://patua.iec.gov.br/handle/iec/4380 |
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eng |
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eng |
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openAccess |
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Sociedade Brasileira de Medicina Tropical |
publisher.none.fl_str_mv |
Sociedade Brasileira de Medicina Tropical |
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Repositório Digital do Instituto Evandro Chagas (Patuá) |
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