[Serological diagnosis of dengue and yellow fever infections in suspected cases from Pará State, Brazil, 1999].
From June to December 1999, 785 serum samples were obtained from patients clinically suspected of having dengue or yellow fever. The patients were referred by public health centers distributed within the six mesoregions of Par  State, Brazil. Serum samples were tested for Flavivirus antibodies by hemagglutination inhibition test and for dengue and yellow fever viruses by enzyme-linked immunosorbent assay for IgM detection. Of the sera collected, 563 (71.7%) were positive by HI test and out of these 150 (26.6%) were positive by ELISA-IgM. Dengue virus was responsible for most of the recent infections in all regions; yellow fever cases detected in the current study were restricted to the Maraj  and Southeast regions.
de Araújo
Tais Pinheiro
TP
Centro Colaborador da Organização Mundial de Saúde em Arboviroses e Laboratório de Referência Naciol del Arbovírus do Instituto Evandro Changas, Belém, PA, Brasil. pedrovasconcelos@ied.pa.gov.br
Rodrigues
Sueli Guerreiro
SG
Costa
Maria Irene Weyl de A
MI
Vasconcelos
Pedro Fernando da Costa
PF
da Rosa
Amélia P A Travassos
AP
D000293:Adolescent; D017677:Age Distribution; D000914:Antibodies, Viral / Q000097:blood*; D001938:Brazil; D016009:Chi-Square Distribution; D003715:Dengue / Q000097:blood / Q000175:diagnosis*; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D005416:Flavivirus / Q000276:immunology*; D006385:Hemagglutination Inhibition Tests; D006801:Humans; D007075:Immunoglobulin M / Q000097:blood*; D008297:Male; D017678:Sex Distribution; D015004:Yellow Fever / Q000097:blood / Q000175:diagnosis*
D000914:Antibodies, Viral; D007075:Immunoglobulin M