สถาบันวิจัยวิทยาศาสตร์สาธารณสุข

National Institute of Health of Thailand

Survey of Leptospirosis among rodents in epidemic areas of Thailand

Authors : Piyada Wangroongsarb*, Wimol Petkanjanapong*, Supaluk Yasaeng*, Amporn Imvithaya*, Pimjai Naigowit*

 

Affiliations:        National Institute of Health, Department of Medical Science

Source:            Journal of Tropical Medicine and Parasitology 2002; 25: 55-8
 
Language:         English
 
Abstract:
 
To study the prevalence of infection by rodent-borne diseases in reservoir rodent species in the Northeast, Northern, Central and Southern parts of Thailand, a survey of leptospiral anitbodies in rodent was conducted during the period October 1998 to April 2000. In total, sera from 1,164 rodents were collected from 10 provinces. Fifty-six sera were determined positive with the titer ³1:50 by the MAT method against any of the 17 letpospira serovars used. Rodent sera collected from the Northeast, Northern, Central and Southern Thailand, were positive at rates of 7.1%, 4.9%, 4.3% and 3.0%, respectively. The positive result of Rattus exulans, R.rattus, Bandicolata indica, R.norvegicus and B.savilei were positive 6.9 (22/317), 5.0 (23/464), 3.5 (6/170), 2.6 (1/38), and 2.3 (4/175), respectively. The predominant serovars of Leptospira spp.in R.exulans and R.norvegicus were pyrogenes, while those of R.rattus, B.indica, R.norvegicus and B.savilei were sejroe and pyrogenes; akiyami A; and others, respectively.