Research: Emergence of new leptospiral serovars (family of bacteria) in American Samoa
Background
Leptospirosis has recently been discussed as an emerging infectious disease in many contexts, including changes in environmental drivers of disease transmission and the emergence of serovars.
In this paper, we report the epidemiology of leptospiral serovars from our study of human leptospirosis in American Samoa in 2010, present evidence of recent serovar emergence, and discuss the potential epidemiological and ecological implications of our findings.
Results
Human leptospirosis seroprevalence in American Samoa was 15.5% in 2010, with serological evidence that infection was caused by three predominant serovars (Hebdomadis, LT 751, and LT 1163). These serovars differed from those identified in an earlier study in 2004, and were not previously known to occur in American Samoa.
In 2010, serovars also differed in geographic distribution, with variations in seroprevalence between islands and different ecological zones within the main island.
THE NEW COMMENTS PROCESS
To make comments, you will need to register. You can register under your real name or use a 'screen' name. This way, people will be able to follow comments and make comments back and forth to each other. If you choose to use a 'screen name' no one will know your true identity. In either case, no email addresses will be available to anyone. It is an automated process. If you have questions, email: webmaster@samoanews.com
You currently are not logged in, please LOGIN to post comments.

![James So'oialo has been banned for three weeks but the Samoa Rugby Union is likely to appeal the decision. [photo:Skeatesimages / Samoa Observer]](http://www.samoanews.com/?q=sites/default/files/imagecache/tiny_square/sooalo_0.jpg)
![University of Hawaii Assistant Coach Tony Tuioti, Hawaii Governor Neil Abercrombie, UH Assistant Coach Keith Uperesa, and UH Head Coach Norm Chow gather exclusively for the Samoa News to let potential UH Warriors and family know they are thinking about you and will definitely be coming to Samoa...and Australia, and New Zealand...and the Kingdom of Tonga.
[Photo by Barry Markowitz]](http://www.samoanews.com/?q=sites/default/files/imagecache/tiny_square/Cool%20Stuff%20Quck%20Take_ChowWEB.jpg)
