Relationship between the prevalence of antibodies to hepatitis B core antigen and arbovirus in fishermen from the Ribeira Valley, Brazil.

L. B. Iversson, C. F. Granato, A. Travassos da Rosa, C. S. Pannuti

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Sera from 299 fishermen 16 to 80 years old, residents in Cananeia and Iguape counties, southern cost of São Paulo State, Brazil, were studied in order to identify a possible association between the prevalence of specific antibodies to the hepatitis B virus (HBV) and exposure to haematophagus mosquitoes evaluated by the prevalence of arbovirus antibodies. This professional group presented the highest prevalence of arbovirus antibodies (54.1%) in past investigations carried out in this heavily forested region. Detection of antibody to hepatitis B core antigen (anti-HBc) in the sera was done by enzyme immunoassay (Roche). Prevalence of anti-HBc antibodies in this group was 31.4% (94/299) which is very high compared with 7.2% to 15.0% for different groups of healthy adults in State of São Paulo. No significant difference is observed between the prevalences of HBV antibodies in Iguape and Cananeia. Prevalence of anti-HBc and anti-arbovirus antibodies increases with age. There is a concordance in the distribution according to age groups of the frequency of anti-HBc and anti-arbovirus positive sera. Ag HBs was detected in 4% of the studied sera. These results support the hypothesis that the transmission of the hepatitis B virus and the arboviruses may be due to the same factor, one of the possibilities would be by anthropophilic mosquitoes.

Original languageEnglish (US)
Pages (from-to)215-220
Number of pages6
JournalRevista do Instituto de Medicina Tropical de Sao Paulo
Volume32
Issue number3
StatePublished - May 1990
Externally publishedYes

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Hepatitis B Core Antigens
Arboviruses
Brazil
Antibodies
Hepatitis B Antibodies
Culicidae
Serum
Immunoenzyme Techniques
Hepatitis B virus
Anti-Idiotypic Antibodies
Age Groups
Costs and Cost Analysis

ASJC Scopus subject areas

  • Public Health, Environmental and Occupational Health

Cite this

Relationship between the prevalence of antibodies to hepatitis B core antigen and arbovirus in fishermen from the Ribeira Valley, Brazil. / Iversson, L. B.; Granato, C. F.; Travassos da Rosa, A.; Pannuti, C. S.

In: Revista do Instituto de Medicina Tropical de Sao Paulo, Vol. 32, No. 3, 05.1990, p. 215-220.

Research output: Contribution to journalArticle

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