Navigation Links
Female-to-Male HIV Transmission Risk Doubles During Pregnancy

More research is needed to explore reasons why, study authors say

SUNDAY, May 23 (HealthDay News) -- Men in a relationship with an HIV-positive woman face double the risk of becoming infected themselves when their partner is pregnant, new research reveals.

The finding is slated for presentation Sunday at the International Microbicides Conference in Pittsburgh.

The two-year study -- launched in Botswana, Kenya, Rwanda, South Africa, Tanzania, Uganda and Zambia -- focused on more than 3,300 couples in which one of the partners was HIV-positive.

Dr. Nelly Mugo, from the University of Nairobi and Kenyatta National Hospital in Nairobi, and colleagues teamed with investigators from the University of Washington in Seattle to track 1,085 couples in which the man was HIV-positive, and 2,236 couples in which the woman was infected.

During the duration of the study, 823 pregnancies occurred. The study authors found that pregnancy increased HIV transmission in both directions: male-to-female and female-to-male.

However, the observed infection risk for women appeared to be a function of several factors beyond pregnancy itself, including sexual behavior. For men, the link between pregnancy and risk increase was much stronger and more direct, Mugo's team noted.

Factors such as the viral load and CD4 count (an indicator of immune system strength) of the infected female partner had no impact on the man's risk. Nor did the man's circumcision status or whether or not the couple had engaged in unprotected sex, the researchers found.

The research team therefore theorized that the doubling of female-to-male transmission risk during pregnancy might be attributed to both immunological and physiological changes -- as yet unidentified -- that are triggered by pregnancy. But they cautioned that more research will be needed to explore this possible explanation.

More information

For more on HIV prevention, visit the U.S. Centers for Disease Control and Prevention's National Prevention Information Network.

-- Alan Mozes

SOURCE: International Microbicides Conference, news release, May 23, 2010

Copyright©2010 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Control of herpes symptoms does not reduce HIV transmission, international study found
2. Herpes medication does not reduce risk of HIV transmission, UW-led international study finds
3. Preventive behaviors limited household transmission of H1N1 influenza during initial outbreak
4. Hand-washing, mask-wearing may limit transmission of pandemic flu
5. York based Company 'Sweet Cures™', Doubles Workforce to Cope with Demand!
6. Major depression more than doubles risk of dementia among adults with diabetes
7. Henry Ford Hospital atudy: Hepatitis C infection doubles risk for kidney cancer
8. Obesity and weight gain near time of prostate cancer surgery doubles risk of recurrence
9. Artificial Pancreas Helps Type 1 Diabetics During Sleep
10. Cocaine or ecstasy consumption during adolescence increases risk of addiction
11. Acupuncture found effective against depression during pregnancy
Post Your Comments:
(Date:6/26/2016)... ... June 26, 2016 , ... Pixel Film Studios Released ProSlice Levels, ... editors can give their videos a whole new perspective by using the title ... Pixel Film Studios. , ProSlice Levels contains over 30 Different presets to choose ...
(Date:6/25/2016)... TX (PRWEB) , ... June 25, 2016 , ... Austin ... of the American College of Mohs Surgery and to Dr. Russell Peckham for medical ... and highly effective treatment for skin cancer. The selective fellowship in Mohs Micrographic Surgery ...
(Date:6/25/2016)... ... June 25, 2016 , ... Dr. Calvin Johnson has dedicated ... has implemented orthobiologic procedures as a method for treating his patients. The procedure ... doctors to perform the treatment. Orthobiologics are substances that orthopaedic surgeons use to ...
(Date:6/24/2016)... ... June 24, 2016 , ... June 19, 2016 is ... associated with chronic pain and the benefits of holistic treatments, Serenity Recovery Center ... suffering with Sickle Cell Disease. , Sickle Cell Disease (SCD) is a disorder of ...
(Date:6/24/2016)... Diego, CA (PRWEB) , ... June 24, 2016 , ... ... with the American Cancer Society and the Road To Recovery® program to drive cancer ... to seniors and other adults to ensure the highest quality of life and ongoing ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... , June 24, 2016  Collagen Matrix, ... design, development and manufacturing of collagen and mineral ... announced today that Bill Messer has ... Marketing to further leverage the growing portfolio of ... devices. Bill joins the Collagen Matrix ...
(Date:6/24/2016)... , June 24, 2016   Bay ... Rehabilitation Network,s Dean Center for Tick Borne ... Medicine and Rehabilitation, MIT Hacking Medicine, University of ... Innovation, today announced the five finalists of ... Lyme disease.  More than 100 scientists, clinicians, researchers, ...
(Date:6/24/2016)... DUBLIN , June 24, 2016 ... addition of the "Structural Electronics 2015-2025: Applications, ... In-Mold Electronics, Smart ... Integrated Photovoltaics Structural electronics involves ... as load-bearing, protective structures, replacing dumb structures such ...
Breaking Medicine Technology: