Hiv testing and counselling for women attending child health clinics: An opportunity for entry to prevent mother-to-child transmission and hiv treatment. Author

National HIV prevalence in Kenya was found to be 6.7%. In the analysis of the study sample, uncircumcised men were 4 times more likely to be HIV-positive than those who were not. Compared with nonpolygynously married women, widowed women (odds ratio [OR] = 10.9), divorced women (OR = 2.3), and women who were 1 of 3 or more wives (OR = 3.4) were all at higher risk for being HIV-positive. Both men and women from Nyanza province were at a significantly higher risk for infection with HIV (OR = 2.9 and 2.3, respectively) than were the men and women from Nairobi. Men aged 35 to 44 years had the highest risk of being HIV-positive, whereas the ages of highest risk for women were 25 to 29 years. Increased wealth was positively related to risk for HIV: the wealthiest women were 2.6 times more likely than the poorest women to be HIV-positive. A key finding was that both men and women who considered themselves to be at low risk for contracting HIV were, in fact, the most likely to be HIV-positive.

This analysis demonstrates that HIV is a multidimensional epidemic, with demographic, residential, social, biological, and behavioral factors all exerting influence on individual probability of becoming infected with HIV. Although all of these factors contribute to the risk profile for a given individual, the results suggest that differences in biological factors such as circumcision and sexually transmitted infections may be more important in assessing risk for HIV than differences in sexual behavior.

Prevalent herpes simplex virus type 2 (HSV-2) infection increases human immunodeficiency virus acquisition. We hypothesized that HSV-2 infection might also predispose individuals to acquire other common sexually transmitted infections (STIs). Methods: We studied the association between prevalent HSV-2 infection and STI incidence in a prospective, randomized trial of periodic STI therapy among Kenyan female sex workers. Participants were screened monthly for infection with Neisseria gonorrhoeae and Chlamydia trachomatis, and at least every 6 months for bacterial vaginosis (BV) and infection with Treponema pallidum, Trichomonas vaginalis, and/or HSV-2.

Increased prevalence of HSV-2 infection and increased prevalence of BV were each associated with the other; the direction of causality could not be determined. After stratifying for sexual risk-taking, BV status, and antibiotic use, prevalent HSV-2 infection remained associated with an increased incidence of infection with N. gonorrhoeae (incidence rate ratio [IRR], 4.3 [95% confidence interval {CI}, 1.5-12.2]), T. vaginalis (IRR, 2.3 [95% CI, 1.3-4.2]), and syphilis (IRR, 4.7 [95% CI, 1.1-19.9]). BV was associated with increased rates of infection with C. trachomatis (IRR, 2.1 [95% CI, 1.1-3.8]) and T. vaginalis (IRR, 8.0 [95% CI, 3.2-19.8]).

Increased prevalences of HSV-2 infection and BV were associated with each other and also associated with enhanced susceptibility to an overlapping spectrum of other STIs. Demonstration of causality will require clinical trials that suppress HSV-2 infection, BV, or both.

Genetic analysis of a viral infection helps in following its spread in a given population, in tracking the routes of infection and, where applicable, in vaccine design. Additionally, sequence analysis of the viral genome provides information about patterns of genetic divergence that may have occurred during viral evolution.

In this study we have analyzed the subtypes of Human Immunodeficiency Virus -1 (HIV-1) circulating in a diverse sample population of Nairobi, Kenya.

69 blood samples were collected from a diverse subject population attending the Aga Khan University Hospital in Nairobi, Kenya. Total DNA was extracted from peripheral blood mononuclear cells (PBMCs), and used in a Polymerase Chain Reaction (PCR) to amplify the HIV gag gene. The PCR amplimers were partially sequenced, and alignment and phylogenetic analysis of these sequences was performed using the Los Alamos HIV Database.

Blood samples from 69 HIV-1 infected subjects from varying ethnic backgrounds were analyzed. Sequence alignment and phylogenetic analysis showed 39 isolates to be subtype A, 13 subtype D, 7 subtype C, 3 subtype AD and CRF01_AE, 2 subtype G and 1 subtype AC and 1 AG. Deeper phylogenetic analysis revealed HIV subtype A sequences to be highly divergent as compared to subtypes D and C.

Our analysis indicates that HIV-1 subtypes in the Nairobi province of Kenya are dominated by a genetically diverse clade A. Additionally, the prevalence of highly divergent, complex subtypes, intersubtypes, and the recombinant forms indicates viral mixing in Kenyan population, possibly as a result of dual infections.

To determine the prevalence of life-time domestic violence by the current partner before HIV-1 testing, its impact on the uptake of prevention of mother-to-child transmission (PMTCT) interventions and frequency after testing.

Antenatally, women and their partners were interviewed regarding physical, financial, and psychological abuse by the male partner before HIV-1 testing and 2 weeks after receiving results.

Before testing, 804 of 2836 women (28%) reported previous domestic violence, which tended to be associated with increased odds of HIV-1 infection [univariate odds ratio (OR) 1.7, 95% confidence interval (CI) 1.3-2.2; P < 0.0001, adjusted OR 1.2, 95% CI 0.9-1.6; P = 0.1], decreased odds of coming with partners for counseling (adjusted OR 0.7, 95% CI 0.5-1.0; P = 0.04), and decreased odds of partner notification (adjusted OR 0.7, 95% CI 0.5-1.1; P = 0.09). Previous domestic violence was not associated with a reduced uptake of HIV-1 counseling, HIV-1 testing, or nevirapine. After receiving results, 15 out of 1638 women (0.9%) reported domestic violence. After notifying partners of results, the odds of HIV-1-seropositive women reporting domestic violence were 4.8 times those of HIV-1-seronegative women (95% CI 1.4-16; P = 0.01). Compared with women, men reported similar or more male-perpetrated domestic violence, suggesting a cultural acceptability of violence.

Domestic violence before testing may limit partner involvement in PMTCT. Although infrequent, immediate post-test domestic violence is more common among HIV-1-infected than uninfected women. Domestic violence prevention programmes need to be integrated into PMTCT, particularly for HIV-1-seropositive women.