Vaginal Practices in Human Immunodeficiency Virus (HIV) Positive Women in Zambia, a Bio-Behavioral Intervention "WASH-2"

Zambia has high rates of women of childbearing age infected with Human Immune Deficiency Virus (HIV). The majority (93%) engage in intravaginal practices (here referred to as IVP) by internal cleansing (intravaginal cleansing) or by inserting products inside the vagina (intravaginal insertion). IVP are culturally driven practices associated with an increased risk of HIV transmission and may play an important role in exacerbating the HIV epidemic across sub-Saharan Africa.

This application proposes to 1) evaluate the long term impact of a bio-behavioral intervention targeting VP among HIV infected women (n=128) in Lusaka, Zambia, and 2) assess the relative contributions of VP and bacterial vaginosis (BV) to lower genital tract inflammation and HIV shedding. Study aims will address the following:

Aim 1. To develop and evaluate the long term impact of a culturally tailored bio-behavioral intervention aimed to decrease IVP in HIV positive women and evaluate the relative contribution of IVP and BV to lower genital inflammation and shedding of HIV.

Aim 1.1. To develop and evaluate the long term impact of a bio-behavioral intervention to decrease IVP.

Intra vaginal practices, as culturally driven and condoned behaviors, are difficult to modify. It is hypothesized that a culturally tailored bio-behavioral intervention is needed to decrease IVP, and that women participating in the intervention condition will reduce IVP in comparison with women in a time matched control condition. Experimental approach: Women engaging in IVP will be randomly assigned to one of two conditions (intervention or control). IVP will be evaluated and compared over 12 months.

Aim 1.2. To compare rates of BV, lower genital tract inflammatory markers and HIV shedding in HIV infected women engaging in VP with and without BV.

Due to the close relationship between IVP and BV, it is difficult to determine the relative contribution of each to lower genital tract inflammation and HIV shedding. It is hypothesized that women engaging in IVP with BV will have similar levels of both lower genital tract inflammatory cytokines and HIV viral load to those without BV. Experimental approach: Vaginal secretions and cervicovaginal fluid will be collected from women engaging in IVP. The presence of BV, inflammatory cytokines (IL-6 and IL-8), and HIV RNA will be determined by gram stain, ELISA and PCR techniques respectively, and compared in women that engage in IVP with and without BV.

Aim 1.3. To compare BV, lower genital inflammatory markers and shedding of HIV in HIV seropositive women participating in the intervention versus control condition.

Interventions to decrease IVP have the goal of reducing BV and associated adverse health outcomes. It is hypothesized that the bio-behavioral intervention will decrease BV, lower genital tract inflammation and HIV shedding. Experimental approach: Laboratory assessments used for Aim 1.2 will be repeated and compared at baseline, 6 and 12 months.

Inclusion criteria

• Women recruited
• Living with HIV-1 infection
• At least 18 years of age,
• Receiving antiretroviral therapy
• Intravaginal practices
• Vaginal intercourse with men in the month prior to enrolment
• Living in the Lusaka metropolitan area

Exclusion criteria

• Pregnant
• Being on hormonal contraception
• Having an intrauterine device (IUD) in place to avoid the potential for induced changes in inflammatory cytokines in the genital mucosa due to contraception.