| recent infection with human immunodeficiency virus and possible rapid loss of cd4 t lymphocytes. | to assess a hypothesized trend that persons recently infected with the human immunodeficiency virus (hiv) may have more rapid declines in absolute cd4 t-lymphocyte (cd4+ cell) counts than those who were hiv-infected in earlier years, sequential cd4+ cell counts in three groups who had definable dates of hiv seroconversion between 1978 and 1992 were reviewed. the cd4+ cell counts examined were from some of the longest extant studies in the united states: 100 homosexual and bisexual men engaged in ... | 1995 | 7788428 |
| human immunodeficiency virus infections among civilian applicants for united states military service, october 1985 to march 1986. demographic factors associated with seropositivity. | during the six months from october 1985 through march 1986, blood samples from 306,061 civilian applicants for military service from the united states were tested for antibody to the human immunodeficiency virus (hiv). four hundred sixty subjects were positive for the antibody as determined by western (immune) blot reactivity. the mean prevalence of hiv infection in this population of teenagers and young adults was thus 1.50 per 1000. according to multivariate analysis, the following demographic ... | 1987 | 3474519 |
| characterization of risk factors for helicobacter pylori infection among men attending a sexually transmitted disease clinic: lack of evidence for sexual transmission. | the mechanism of transmission of helicobacter pylori is unknown. to investigate the role of sexual behavior and demographic factors in the acquisition of h. pylori infection, we evaluated the seroprevalence of antibody to h. pylori in 370 men attending an urban sexually transmitted diseases clinic. sera from the following three groups were analyzed by enzyme-linked immunosorbent assay for h. pylori-specific immunoglobulin g: 78 human immunodeficiency virus (hiv)-seropositive homosexual men, 102 ... | 1991 | 1939565 |
| street outreach for std/hiv prevention--colorado springs, colorado, 1987-1991. | strategies to identify and influence persons at increased risk for infection with human immunodeficiency virus (hiv) and other sexually transmitted diseases (stds) require outreach to provide prevention messages directly to persons at risk, assist them to obtain prevention services, and encourage them to reduce risks. street outreach programs complement cdc's information and education campaign "america responds to aids" by providing persons with specific risk-reduction messages and materials. th ... | 1992 | 1734230 |
| per-contact risk of human immunodeficiency virus transmission between male sexual partners. | the risk of human immunodeficiency virus (hiv) transmission from various types of homosexual contact, including oral sex, is of biologic, epidemiologic, and public health importance. the per-contact risk of acquiring hiv infection from specific acts was estimated in a prospective cohort study of 2,189 high-risk homosexual and bisexual men, conducted in san francisco, california; denver, colorado; and chicago, illinois, in 1992-1994. during 2,633 person-years of follow-up, 60 seroconversions were ... | 1999 | 10430236 |
| cancer risk in people infected with human immunodeficiency virus in the united states. | data are limited regarding cancer risk in human immunodeficiency virus (hiv)-infected persons with modest immunosuppression, before the onset of acquired immunodeficiency syndrome (aids). for some cancers, risk may be affected by highly active antiretroviral therapy (haart) widely available since 1996. we linked hiv/aids and cancer registries in colorado, florida and new jersey. standardized incidence ratios (sirs) compared cancer risk in hiv-infected persons (initially aids-free) during the 5-y ... | 2008 | 18435450 |