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
; 32(3): 215-20, maio-jun. 1990. tab
Article
in En
| LILACS
| ID: lil-103598
Responsible library:
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
Full text:
1
Database:
LILACS
Main subject:
Arboviruses
/
Hepatitis B Antibodies
/
Hepatitis B Core Antigens
/
Antibodies, Viral
Type of study:
Prevalence_studies
/
Prognostic_studies
/
Risk_factors_studies
Limits:
Adolescent
/
Adult
/
Humans
/
Male
Country/Region as subject:
America do sul
/
Brasil
Language:
En
Journal:
Rev. Inst. Med. Trop. Säo Paulo
Journal subject:
MEDICINA TROPICAL
Year:
1990
Type:
Article