| unexpected low prevalence of delta antibodies in the east amazon region and são paulo: evidence for regional differences in the epidemiology of delta hepatitis virus within brazil. | antibodies (anti-hd) to hepatitis delta virus (hdv) were tested by radioimmunoassay in 207 human serum samples from the eastern amazon (states of pará and amapá) and são paulo, brazil. 42 amazon hbsag asymptomatic carriers were negative for anti-hd. 84 são paulo hbsag asymptomatic carriers were also negative. among the 81 hbsag patients from são paulo with different liver diseases, only one had anti-hd. liver biopsy of this chronic active hepatitis case was positive for hbsag, hbcag and hdag in ... | 1987 | 3445327 |
| hepatitis delta in hiv/hbv co-infected patients in brazil: is it important? | this study was carried out to evaluate the prevalence of hepatitis delta virus (hdv) among human immunodeficiency virus (hiv)/hepatitis b virus (hbv) co-infected patients from são paulo, in the southeast region of brazil. | 2011 | 21999909 |
| hepatitis delta virus genotype 8 infection in northeast brazil: inheritance from african slaves? | hepatitis delta virus (hdv) is endemic worldwide, but its prevalence varies in different geographical areas. while in the brazilian amazon, hdv is known to be endemic and to represent a significant public health problem, few studies have assessed its prevalence in other regions in the country. this study evaluated the seroprevalence of hdv among hbsag chronic carriers from maranhão state, a region located in the northeast of brazil. among 133 patients, 5 had anti-hd, of whom 3 had hdv rna. hdv g ... | 2011 | 21798297 |