Creating a free account will enable you to subscribe to our daily and weekly email newsletters, as well as customize your reading experience to show only the categories most relevant to you.
Signing up only take a few minutes, so why not give it a try and see what you've been missing out on.
Providing insecticide-treated underwear to people in homeless shelters was effective in eliminating body lice infestations, but the effect did not last and resistance to insecticide resistance increased, according to the results of a clinical trial by Samir Benkouiten, M.P.H., of Aix Marseille Université, France, and colleagues.
Body lice are contagious and can be spread through body contact, shared clothing, shared bedding and overcrowded conditions. Researchers sought to determine whether long-lasting, insecticide-treated underwear would protect against the proliferation of body lice in the homeless, according to the study background.
The study randomized 73 homeless people to underwear treated with the insecticide permethrin (n=40) and placebo (n=33). Follow-up visits were scheduled on days 14 and 45.
More homeless people with the insecticide-treated underwear were free of body lice on day 14 (11 of 40) compared with the placebo group (3 of 33). But that difference was not sustained on day 45 and was accompanied by increasing resistance in body lice collected from the homeless.
"In conclusion, this trial clearly demonstrates that the use of permethrin-impregnated underwear had the consequence of increasing the percentage of permethrin-resistant body lice in sheltered homeless persons. These findings lead us to recommend avoiding the use of permethrin to treat body lice infestations, although implementing new strategies is crucial," the authors conclude.
JAMA Dermatol. Published online December 4, 2013. doi:10.1001/.jamadermatol.2013.6398.
This study was supported by a national grant from the French Health Ministry to an author. Please see the article for additional information, including other authors, author contributions and affiliations, financial disclosures, funding and support, etc.
Article adapted by Medical News Today from original press release. Click 'references' tab above for source.
Visit our Dermatology category page for the latest news on this subject.
Please use one of the following formats to cite this article in your essay, paper or report:
Dermatology, JAMA. "Clinical trial tests insecticide-treated underwear to ward off body lice in shelters." Medical News Today. MediLexicon, Intl., 4 Dec. 2013. Web.
23 Apr. 2014. <http://www.medicalnewstoday.com/releases/269625>
Dermatology, J. (2013, December 4). "Clinical trial tests insecticide-treated underwear to ward off body lice in shelters." Medical News Today. Retrieved from
Please note: If no author information is provided, the source is cited instead.
If you write about specific medications, operations, or procedures please do not name healthcare professionals by name.
For any corrections of factual information, or to contact our editorial team, please use our feedback form. Please send any medical news or health news press releases to:
Note: Any medical information published on this website is not intended as a substitute for informed medical advice and you should not take any action before consulting with a health care professional. For more information, please read our terms and conditions.
This page was printed from: http://www.medicalnewstoday.com/releases/269625.php
Visit www.medicalnewstoday.com for medical news and health news headlines posted throughout the day, every day.
© 2004-2014 All rights reserved. MNT is the registered trade mark of MediLexicon International Limited.