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Secondary dengue infection in schoolchildren in a dengue endemic area in the State of Rio de Janeiro, Brazil
| Content Provider | Scilit |
|---|---|
| Author | Cunha, Rivaldo Venâncio da Dias, Márcio Nogueira, Rita M. R. Chagas, Nelson Miagostovich, Marize P. Schtzmayr, Hermann G. |
| Copyright Year | 1995 |
| Description | A seroepidemiologic survey was carried out in schoolchildren from public schools of the Niterói municipality, state of Rio de Janeiro, Brazil, after a period of sequential epidemics by dengue virus type 1 and 2 (DEN-1 and DEN-2). 450 blood samples were obtained by fingertip puncture and collected on filter paper discs. The hemagglutination inhibition (HAI) test was carried out using DEN-1 and DEN-2 antigens. HAI titres were demonstrated in 66% (297/450) of the sera and the geometric means of the titres were 1/182 and 1/71 for DEN-1 and DEN-2, respectively. Secondary infections were observed in 61% (181/297) of positive cases. Among these, 75% (135/181) were under fifteen years old. No dengue haemorrhagic fever (DHF) was reported in these children. Asymptomatic or oligosymptomatic infections were detected in 56% of the studied population. The absolute and relative frequencies of positive tests by age group and sex did not evidence statistically significant difference. The number of individuals infected probably produced a immunologic barrier responsible for the non occurrence of dengue epidemic in the latter years. |
| Related Links | http://www.scielo.br/pdf/rimtsp/v37n6/a08v37n6.pdf |
| Ending Page | 521 |
| Page Count | 5 |
| Starting Page | 517 |
| e-ISSN | 16789946 |
| DOI | 10.1590/s0036-46651995000600008 |
| Journal | Revista Do Instituto de Medicina Tropical de São Paulo |
| Issue Number | 6 |
| Volume Number | 37 |
| Language | English |
| Publisher | FapUNIFESP (SciELO) |
| Publisher Date | 1995-12-01 |
| Access Restriction | Open |
| Subject Keyword | Revista Do Instituto de Medicina Tropical de São Paulo Tropical Medicine |
| Content Type | Text |
| Resource Type | Article |
