Relationship between the prevalence of antibodies to hepatitis B core antigen and arbovirus in fishermen from the Ribeira Valley, Brazil
Rev. Inst. Med. Trop. Säo Paulo
; Rev. Inst. Med. Trop. Säo Paulo;32(3): 215-20, maio-jun. 1990. tab
Article
em En
| LILACS
| ID: lil-103598
Biblioteca responsável:
BR1.1
ABSTRACT
Sera from 299 fishermen 16 to 80 years old, residents in Cananeia and Iguape counties, southern cost of Säo Paulo State, Brazil, were studied in order to identify a possible association between the prevalance 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 Säo 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 positivesera. 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
Texto completo:
1
Coleções:
01-internacional
Base de dados:
LILACS
Assunto principal:
Arbovírus
/
Anticorpos Anti-Hepatite B
/
Antígenos do Núcleo do Vírus da Hepatite B
/
Anticorpos Antivirais
Tipo de estudo:
Prevalence_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Adolescent
/
Adult
/
Humans
/
Male
País/Região como assunto:
America do sul
/
Brasil
Idioma:
En
Revista:
Rev. Inst. Med. Trop. Säo Paulo
Assunto da revista:
MEDICINA TROPICAL
Ano de publicação:
1990
Tipo de documento:
Article
País de publicação:
Brasil