Epidemia de dengue em Ipupiara e Prado, Bahia. Inquérito soro-epidemiológico.

Translated title of the contribution: A dengue epidemic in Ipupiara and Prado, Bahia. A seroepidemiologic survey

P. F. Vasconcelos, K. Mota, A. Straatmann, S. Santos-Torres, A. P. da Rosa, J. Tavares Neto

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

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-inhibition 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.

Original languagePortuguese
Pages (from-to)61-67
Number of pages7
JournalRevista da Sociedade Brasileira de Medicina Tropical
Volume33
Issue number1
StatePublished - Jan 2000
Externally publishedYes

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Dengue
Dengue Virus
Virus Diseases
Brazil
Hemagglutination Inhibition Tests
Aedes
Clinical Laboratory Techniques
Internship and Residency
Population
Breeding
Surveys and Questionnaires
Infection
Serum
Serogroup

ASJC Scopus subject areas

  • Parasitology
  • Infectious Diseases

Cite this

Vasconcelos, P. F., Mota, K., Straatmann, A., Santos-Torres, S., da Rosa, A. P., & Tavares Neto, J. (2000). Epidemia de dengue em Ipupiara e Prado, Bahia. Inquérito soro-epidemiológico. Revista da Sociedade Brasileira de Medicina Tropical, 33(1), 61-67.

Epidemia de dengue em Ipupiara e Prado, Bahia. Inquérito soro-epidemiológico. / Vasconcelos, P. F.; Mota, K.; Straatmann, A.; Santos-Torres, S.; da Rosa, A. P.; Tavares Neto, J.

In: Revista da Sociedade Brasileira de Medicina Tropical, Vol. 33, No. 1, 01.2000, p. 61-67.

Research output: Contribution to journalArticle

Vasconcelos, PF, Mota, K, Straatmann, A, Santos-Torres, S, da Rosa, AP & Tavares Neto, J 2000, 'Epidemia de dengue em Ipupiara e Prado, Bahia. Inquérito soro-epidemiológico.', Revista da Sociedade Brasileira de Medicina Tropical, vol. 33, no. 1, pp. 61-67.
Vasconcelos PF, Mota K, Straatmann A, Santos-Torres S, da Rosa AP, Tavares Neto J. Epidemia de dengue em Ipupiara e Prado, Bahia. Inquérito soro-epidemiológico. Revista da Sociedade Brasileira de Medicina Tropical. 2000 Jan;33(1):61-67.
Vasconcelos, P. F. ; Mota, K. ; Straatmann, A. ; Santos-Torres, S. ; da Rosa, A. P. ; Tavares Neto, J. / Epidemia de dengue em Ipupiara e Prado, Bahia. Inquérito soro-epidemiológico. In: Revista da Sociedade Brasileira de Medicina Tropical. 2000 ; Vol. 33, No. 1. pp. 61-67.
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