HIV/AIDS Topics HIV Prevention HIV Sexual Transmission
EACS 2017: Swiss Study Examines When Gay Men Decided to Stop Consistent Condom Use
- Details
- Category: HIV Sexual Transmission
- Published on Sunday, 05 November 2017 00:00
- Written by Gus Cairns
An innovative study presented at the 16th European AIDS Conference (EACS 2017) in Milan in October used a machine-learning algorithm (originally developed to help astronomers classify galaxies) to tease out whether there were specific groups of gay men within a large national cohort whose sexual risk behaviors followed similar trajectories over time, and if so, whether they were influenced by external factors such as new scientific data.
5. HIV Prevention for Women
- Details
- Category: HIV Sexual Transmission
- Published on Thursday, 22 December 2016 00:00
- Written by HIVandHepatitis.com
Use of Truvada for pre-exposure prophylaxis (PrEP) is highly effective and is now widely used among gay men, but biomedical HIV prevention for women has lagged behind.
HIVR4P 2016: Anal Sex May Transmit 4 in 10 HIV Infections Among High-Risk U.S. Women
- Details
- Category: HIV Sexual Transmission
- Published on Tuesday, 18 October 2016 00:00
- Written by Gus Cairns
A study presented at the HIV Research for Prevention conference this week in Chicago suggests that among women at high risk for HIV infection, 40% or more infections might be transmitted via anal intercourse. Because HIV is transmitted, according to different estimates, from 2 to 18 times more easily via anal than vaginal sex (the Centers for Disease Control and Prevention's estimate is 12 times), anal intercourse could be a major -- or even predominant -- contributor to HIV infections in heterosexual women, even if anal sex accounts for only 5%-10% of all sex.
HIVR4P 2016: Vaginal and Rectal Bacteria May Influence HIV Transmission and Microbicide Efficacy
- Details
- Category: HIV Sexual Transmission
- Published on Friday, 21 October 2016 00:00
- Written by Gus Cairns
A number of presentations at the HIV Research for Prevention Conference (HIVR4P 2016) this week in Chicago looked at the influence of vaginal bacteria on HIV susceptibility, with one study finding that vaginal bacteria may have profound effects on levels of certain drugs used as microbicides -- but not others. A poster at the conference also looked at bacteria in the rectum in gay men, finding a correlation between condomless anal sex and changes in the predominant bacterial species which may similarly increase susceptibility to HIV infection.
Certain Vaginal Bacteria May Protect Against HIV Transmission During Sex
- Details
- Category: HIV Sexual Transmission
- Published on Wednesday, 07 October 2015 00:00
- Written by American Society for Microbiology
Specific types of Lactobacillus bacteria in the vaginal mucus can trap HIV and may help prevent sexual transmission of the virus to women, according to a report in the October 6 edition of the online journal mBio. Conversely, researchers found that another species associated with bacterial vaginosis may increase susceptibility to HIV infection.
More Articles...
- Vaginal Infections May Help Explain Link Between Hormonal Contraception and Increased HIV Risk
- IAS 2015: Gay Men Are Using Nuanced Sero-adaptive Behaviors to Prevent HIV Infection
- BHIVA 2015: HIV+ Men on Antiretroviral Treatment Have Undetectable Rectal Viral Load
- CROI 2015: PEPFAR Abstinence and Faithfulness Funding Had No Impact on Sexual Behavior in Africa
- Gay Men Better at Predicting When They Won't Have Sex than When They Will
- Meta-Analysis Shows Injectable Hormonal Contraception Linked to HIV Infection Risk
- CDC Researchers Publish Estimate of Effectiveness of Condom Use for Gay Men
- Semen May Enhance HIV Infectivity and Impair Microbicide Effectiveness
- New Studies Offer More Insight on HIV Sexual Transmission and Prevention
- Is HIV Transmission Risk Really Near Zero If HIV+ Heterosexual Partners Are on ART?
- HIV Viral Load in Semen Can Vary Over a Short Time in Men on Antiretroviral Therapy
- CROI 2014: Very Different Levels of PrEP Uptake and Adherence in 3 U.S. Cities
- CROI 2014: Nipping HIV in the Bud -- Could We Use Genotyping to Interrupt Transmission?
- CDC Reports Probable Case of HIV Transmission Linked to Lesbian Sex
- Studies Shed Light on Sexual Transmission of HIV Among Young Gay Men
- San Francisco Forum Discusses Condomless Sex and HIV Prevention
- Unprotected Sex Rising Among Gay and Bi Men, Knowing HIV Status Reduces Risk
- IAS 2013: HIV May Be Present in Semen Despite Undetectable Blood Viral Load
- IAS 2013: Early Testing and Treatment Linked to Lower Sexual Risk in Thai Study [VIDEO]
- IAS 2013: No Increase in Risk Behavior among People Taking ART, Meta-Analysis Shows
- Some Men Shed HIV in Semen Despite ART, Linked to Herpesvirus Coinfection
- Reformulated Tenofovir Gel Found Safe and Acceptable for Anal Sex
- Study Suggests Why Adult Circumcision Helps Prevent HIV Infection
- New Advocacy Group Wants to Improve Feasibility of PrEP for U.S. Women
- CROI 2013: Consistent Condom Use Stops 70% of HIV Infections, Says CDC
- CROI 2013: Does Hormonal Contraception Raise the Risk of HIV Infection? [VIDEO]
- CROI 2013: Black Gay Men Have Higher HIV Risk Despite Fewer Partners
- IL-7 in Semen May Facilitate HIV Transmission during Vaginal Sex
- Lubricants for Sex Can Damage Cells, but Did Not Increase HIV Risk in Lab Study
- Truvada PrEP Demonstration Project Debuts in San Francisco
- SF Forum Reveals Conflicting Views about Serosorting to Reduce HIV Transmission Risk
- AIDS 2012: NIH to Test Dapivirine Vaginal Ring for HIV Prevention
- NEXT-PrEP Trial Will Test CCR5 Blocker Maraviroc for HIV Prevention
- FDA Approves Truvada PrEP for Prevention of Sexually Transmitted HIV Infection
- HIV PrEP Can Be Highly Effective, but Only if Used Consistently
- Bathhouses Can Be Good Venues for HIV Testing and Linkage to Care
- CDC Review Finds No Link Between Hormonal Contraception and HIV Risk
- Preparing for PrEP
- FDA Advisory Committee Recommends Truvada for Prevention of HIV Sexual Transmission
- FDA Committee Will Consider Approval of Truvada for HIV PrEP this Thursday
- Female Condom a Cost-Effective Way to Prevent HIV Infection
- Antiretroviral Therapy Does Not Always Fully Suppress HIV in Semen
- CROI 2012: HIV Superinfections May Happen as Often as First Infections
- CROI 2012: Hormonal Contraception May Raise HIV Risk for Women, but Uncertainty Remains
- WHO Affirms That Women at Risk for HIV Should Continue To Use Injectable Contraceptives
- Gilead Requests FDA Approval of Truvada for HIV Prevention
- Math Model Suggests PrEP plus ART Would Lower HIV Drug Resistance
- Truvada Drug Levels in Vaginal and Rectal Tissue Offer Clues to HIV PrEP Puzzle
- Hormonal Contraception Increases Risk of HIV Infection for Women and Men
- IAS 2011: Hormonal Contraceptive Use Increases Women’s Risk of Acquiring and Transmitting HIV
- HIV Superinfection Not Seen in Amsterdam Gay Men
- Genital Viral Load Predicts Heterosexual HIV Transmission Risk
- Black Men Who Have Sex with Men Have Higher HIV Rate despite Less Sexual Risk Behavior
- Acyclovir Reduces HIV Viral Load in People with Genital Herpes, but Not Risk for HIV Transmission
- Sperm Cells, in Addition to Semen, May Play a Role in Sexual Transmission of HIV
- CDC Issues New Fact Sheet on Risk of Transmission of HIV and Other Sexually Transmitted Disease via Oral Sex
- How Safe is HIV Serosorting for Men who have Sex with Men?
- Swiss Experts Claim HIV Patients with Undetectable Viral Load Who Adhere to Treatment Cannot Transmit the Virus to HIV Negative Partners
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