Mouse Study Offers Hope for Vaccine Against Chlamydia

THURSDAY, July 21, 2016 (HealthDay News) -- A new Canadian study with mice suggests there is hope for a vaccine to protect against chlamydia, a common, sexually transmitted infection that can render young women infertile if left untreated.

Opioids by Injection May Drive HIV Outbreaks

WEDNESDAY, July 20, 2016 (HealthDay News) -- The U.S. prescription drug abuse epidemic has increased the risk of HIV outbreaks in rural and suburban communities, where up to now the virus has posed little threat, warns a new case study.

Cancer Experts Endorse CDC's HPV Vaccine Guidelines

TUESDAY, July 19, 2016 (HealthDay News) -- The American Cancer Society has endorsed the U.S. government's HPV vaccination recommendations, which include immunizing all preteens against the sexually transmitted human papilloma virus.

Mixed Progress in Worldwide Fight Against HIV/AIDS

TUESDAY, July 19, 2016 (HealthDay News) -- The number of HIV/AIDS deaths worldwide each year has fallen since peaking in 2005, but the number of new HIV infections is up in 74 countries, according to a new study.

Monthly Vaginal Ring May Help Protect Against HIV

MONDAY, July 18, 2016 (HealthDay News) -- When used regularly, a medicated monthly vaginal ring may be an effective way for women in sub-Saharan Africa to protect themselves from HIV infection, according to new research.

1st Case of Female-to-Male Sexual Transmission of Zika Reported

FRIDAY, July 15, 2016 (HealthDay News) -- A New York City woman who became infected with the Zika virus on a trip outside the United States passed the infection to her boyfriend during sex, city health officials reported.

Cash Rewards Won't Change Outcomes for HIV-Infected Drug Addicts: Study

WEDNESDAY, July 13, 2016 (HealthDay News) -- Giving drug-addicted, HIV-positive people cash incentives to help improve unhealthy behaviors doesn't work, a new study finds.

Do More to Fight HIV in Africa: Study

TUESDAY, July 12, 2016 (HealthDay News) -- New HIV infections in African men could be prevented by increasing male circumcision rates and providing more women with HIV antiretroviral therapy (ART), a new study finds.

How Safe Is Condomless Sex When Partner With HIV Takes Meds?

TUESDAY, July 12, 2016 (HealthDay News) -- HIV transmission is highly unlikely among straight couples who have sex without condoms when one partner carries the virus but takes medication, new research suggests.

Stigma Prolongs Global HIV Epidemic Among Gays

THURSDAY, July 7, 2016 (HealthDay News) -- High rates of HIV among gay and bisexual men continue in many regions of the world because of discriminatory laws and lack of access to preventive services, a new study finds.