Singchai Chantra, Deesin Vanida, Srisawat Raweewan, Yamput Sanan, Phanphuwong Theerawit, Pongwatanakulsiri Pongpat, Vimutisunthorn Eiam, Puthavathana Pilaipan
Division of Veterinary Public Health, Department of Health, Bangkok Metropolitan Administration, Thailand.
J Med Assoc Thai. 2003 Sep;86(9):795-801.
Commensal rats and shrews were trapped from 47 fresh food markets in Bangkok during the two study periods in the same markets: 21st June to 28th December 1999 and 1st March to 31st May 2000. Trapping was performed using wire live traps on three consecutive nights in each period. The trapped animals were identified for taxonomic species and flea infestation. Fleas were collected, identified and counted. Four species of rodents: Rattus norvegicus, Rattus rattus, Rattus exulans and Mus musculus, and one species of shrew: Suncus murinus were trapped in comparable numbers during the two study periods. Among the 1177 animals trapped, 84.3 per cent were R. norvegicus. Regarding sex prevalence, a higher number of female animals were trapped compared to males. Almost all the fleas collected were Xenopsylla cheopis, and there were very few Ctenocephalidesfelis-felis. Flea index based on the number of X. cheopis was 0.65 for all over Bangkok. Based on the geographical area of Bangkok, the inner area had the highest rodent population and the highest flea index of 0.86. Therefore, the inner region should be the priority for sanitation improvement.
在1999年6月21日至12月28日以及2000年3月1日至5月31日这两个研究时间段内，从曼谷的47个新鲜食品市场捕获了共生鼠类和鼩鼱。在每个时间段内，连续三个晚上使用铁丝活套进行诱捕。对捕获的动物进行分类物种鉴定和跳蚤感染情况检查。收集、鉴定并统计跳蚤。在这两个研究时间段内，捕获了四种啮齿动物：褐家鼠、黑家鼠、黄胸鼠和小家鼠，以及一种鼩鼱：臭鼩，数量相当。在捕获的1177只动物中，84.3%是褐家鼠。就性别比例而言，捕获的雌性动物数量多于雄性。收集到的跳蚤几乎都是印鼠客蚤，猫栉首蚤很少。整个曼谷的基于印鼠客蚤数量的跳蚤指数为0.65。根据曼谷的地理区域，内城区的啮齿动物数量最多，跳蚤指数最高，为0.86。因此，内城区应作为改善环境卫生的重点区域。
