佛罗里达黑熊的恙螨病
Trombiculiasis in the Florida black bear.
作者信息
Cunningham M W, Phillips L A, Wellbourn C
机构信息
Department of Pathobiology, College of Veterinary Medicine, University of Florida, Gainesville 32611, USA.
出版信息
J Wildl Dis. 2001 Jul;37(3):634-9. doi: 10.7589/0090-3558-37.3.634.
We found trombiculid mite (Trombiculidae) infestations in 32 of 101 (32%) freeranging Florida black bears (Ursus americanus floridanus) live-captured or necropsied in Florida from January 1999 to April 2000. Prevalence of chigger infestation was greatest in June with no infestations seen October to March. Chigger infestations were recognized as accumulations of bright orange granular material usually associated with hair shafts. Mites were found in clusters of one to 102 (mean +/- SD = 8.5+/-19.5) and were distributed primarily over the ventral abdomen and thorax, inguinal and axillary regions, and proximal medial aspect of the extremities. Mites were identified as larval Eutrombicula splendens. Cutaneous lesions were seen in two of 32 (6%) infested bears.
1999年1月至2000年4月期间，在佛罗里达州活捉或剖检的101只佛罗里达黑熊（美洲黑熊佛罗里达亚种）中，我们发现32只（32%）感染了恙螨（恙螨科）。恙螨感染率在6月最高，10月至次年3月未见感染。恙螨感染表现为通常与毛干相关的亮橙色颗粒物质积聚。发现螨虫聚集成群，数量为1至102只（平均±标准差=8.5±19.5），主要分布在腹侧腹部和胸部、腹股沟和腋窝区域以及四肢近端内侧。螨虫被鉴定为华丽真恙螨幼虫。32只受感染的熊中有2只（6%）出现了皮肤病变。
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