| prevalence of antibodies to hepatitis a antigen in sera from patients with haematological malignancies. | the prevalence of antibodies to hepatitis a (anti-ha) was investigated in patients attending a clinic for haematological malignancies. patients were divided into three age groups; the number with antibodies in each group was recorded. of the 130 patients studied, 44% of those aged 4-26, 70% of those aged 27-50, and 83% of those aged 51-76, were positive. this study identifies patients attending a clinic for haematological malignancies (ie, patients with immunologic deficiencies) as a group of pe ... | 1981 | 6271921 |
| prevalence of antibodies to hepatitis a virus in nova scotia children. | blood samples from 304 children aged 6 months to 16 years were tested by radioimmunoassay for antibodies to hepatitis a virus (anti-hav). of several factors examined for a possible association with the prevalence of anti-hav--age, sex, race, geographic location and presence of malignant disease--only age showed a positive correlation with the prevalence of these antibodies. | 1983 | 6301669 |