| prevalence of hepatitis b and c viruses and human immunodeficiency virus infections in women of reproductive age. | to determine the prevalence of hepatitis b and c viruses, and human immunodeficiency virus infections in women of reproductive age attending a health care system. | 1992 | 1525103 |
| hepatitis b virus, hepatitis c virus and human immunodeficiency virus infection in health care workers: a multiple regression analysis of risk factors. | a seroprevalence survey of hepatitis b virus (hbv), hepatitis c virus (hcv) and human immunodeficiency virus (hiv), was conducted using serum samples obtained from 5813 health care workers (hcws) in five public hospitals in the latium region of italy, during the 1985 vaccination campaign against hbv. the seroprevalences of hbv, hcv and hiv were 23.3% [95% confidence interval (ci) = 22.3-24.4%], 2% (95% ci = 1.6-2.4%) and 0.07% (95% ci = 0.001-0.13%), respectively. in a logistic regression model, ... | 1995 | 7499808 |
| the hiv/aids epidemics among drug injectors: a study of contact structure through a mathematical model. | numerical results of a model with variable infectivity for the dynamics of hiv/aids (human immunodeficiency virus/acquired immune deficiency syndrome) have been compared with the data of aids cases among intravenous drug users in italy, especially in the latium region. we examined several hypotheses about the dynamics of the epidemics; for each we obtained, mainly through a least-square approach but also minimizing a different quantity, a best-fit estimate of the parameters. in the simplest mode ... | 1997 | 9111778 |