bannerHON
img
HONnews
HONnews
img PATIENT / PARTICULIER img PROFESSIONNEL DE SANTE img WEBMESTRE img
img
 
img
HONcode sites
Khresmoi - new !
HONselect
News
Conferences
Images

Themes:
A B C D E F G H I
J K L M N O P Q
R S T U V W X Y Z
Browse archive:
2017: O S A J J M A M F J
2016: D N O

 
  Other news for:
Family Planning
Infection
Sex
Sexually Transmitted Diseases
Viruses
 Resources from HONselect
Zika May Not Last in Semen as Long as Thought
Men should still follow CDC guidelines and use condoms for at least 6 months, health experts say

By Dennis Thompson
HealthDay Reporter

FRIDAY, Aug. 18, 2017 (HealthDay News) -- Zika virus might not remain in the semen of some infected men as long as previously thought, a small study suggests.

The researchers said Zika may only be present in semen for about a month. Previous research had suggested that Zika virus can be found in semen for as long as 188 days after the onset of symptoms.

The new study included 12 men in French Guiana who had Zika virus. Four of the men never had any detectable Zika in their semen. One excreted Zika virus in his semen for at least three days. And seven had Zika-laced semen for at least a month, the researchers reported. The maximum duration of detectable Zika in semen in the study was 45 days.

"These data suggest that not all men who are symptomatically infected with Zika virus will have Zika virus RNA detectable in semen," Dr. Franck de Laval, of the Military Center for Epidemiology and Public Health in Marseille, France, and colleagues wrote.

The results also showed that Zika does replicate in the testicles or semen-producing glands, since the amount of Zika in semen was significantly different than the Zika load found in the men's blood.

"More data are needed to better inform public health recommendations," the study authors suggested.

Zika virus is most often transmitted via mosquito bite. But the virus also can be sexually transmitted, according to the U.S. Centers for Disease Control and Prevention.

The CDC recommends that men potentially exposed to Zika use condoms or abstain from sex for at least six months, to prevent a Zika-infected pregnancy resulting in neurological birth defects.

It's unlikely the CDC recommendations will change based on these findings, an infectious disease expert said.

Dr. Daniel Caplivski is director of the Travel Medicine Program and associate professor for the division of infectious diseases at the Icahn School of Medicine at Mount Sinai in New York City.

"Unfortunately, the fundamental recommendations of public health experts regarding delaying pregnancy after Zika virus infection or exposure are unlikely to change, given the degree of uncertainty that remains from other studies in which the genetic material of the virus was detectable for longer periods of time," Caplivski said.

And despite these findings, people should still follow the CDC's Zika guidelines for safe sex, health experts said.

According to Dr. Amesh Adalja, a senior associate with the Johns Hopkins Center for Health Security, in Baltimore, "Because it is unclear which men will have longer persistence, it is important for Zika-infected/exposed men to practice safe sexual practices for six months post-infection to avoid transmission of the virus."

Women's health specialist Dr. Jill Rabin said the small size of the study warrants a larger follow-up.

"The good news is it may last a shorter period in men than recorded previously, but we need to have a larger sample size and follow people for a longer period of time," Rabin said.

"Because we don't have enough data and we don't have enough people, we can't really say what is the time period needed to be free of infection," she added.

Zika causes neurological birth defects, most commonly microcephaly, a condition in which a baby's brain and skull are underdeveloped, Rabin said. She's co-chief of the division of ambulatory care with Women's Health Programs-PCAP Services at Northwell Health in New Hyde Park, N.Y.

There's also concern that Zika-exposed babies seemingly born healthy will develop learning disabilities or problems with hearing or sight later in life, Rabin noted.

"Women of reproductive age do not want to have a baby born with Zika," she said. "You want to follow the worst-case scenario, and the worst-case scenario is it could last up to six months. Why would you take a chance with your baby?"

The study was published as a letter in the Aug. 17 issue of the New England Journal of Medicine.

More information

For more on sexual transmission of Zika, visit the U.S. Centers for Disease Control and Prevention.

SOURCES: Daniel Caplivski, M.D., director, Travel Medicine Program and associate professor, division of infectious diseases, Icahn School of Medicine at Mount Sinai, New York City; Amesh Adalja, M.D., senior associate, Johns Hopkins Center for Health Security, Baltimore; Jill Rabin, M.D., co-chief, division of ambulatory care, Women's Health Programs-PCAP Services, Northwell Health, New Hyde Park, N.Y.; Aug. 17, 2017, New England Journal of Medicine

Copyright © 2017 HealthDay. All rights reserved. URL:http://consumer.healthday.com/Article.asp?AID=725635

Resources from HONselect: HONselect is the HON's medical search engine. It retrieves scientific articles, images, conferences and web sites on the selected subject.
Semen
Men
Women
Communicable Diseases
Infection
The list of medical terms above are retrieved automatically from the article.

Disclaimer: The text presented on this page is not a substitute for professional medical advice. It is for your information only and may not represent your true individual medical situation. Do not hesitate to consult your healthcare provider if you have any questions or concerns. Do not use this information to diagnose or treat a health problem or disease without consulting a qualified healthcare professional.
Be advised that HealthDay articles are derived from various sources and may not reflect your own country regulations. The Health On the Net Foundation does not endorse opinions, products, or services that may appear in HealthDay articles.


Home img About us img MediaCorner img HON newsletter img Site map img Ethical policies img Contact