恙螨科新成员长野新恙螨（蜱螨亚纲：恙螨科）可引发人类皮炎。

A new member of the trombiculid mite family Neotrombicula nagayoi (Acari: Trombiculidae) induces human dermatitis.

作者信息

Takahashi Mamoru, Misumi Hitoko, Urakami Hiroshi, Saito Teruo, Misumi Motohiro, Matsumoto Isao, Suzuki Hiroshi

机构信息

Kawagoe Sogo Senior High School, Kosenba-machi, Kawagoe, Japan.

出版信息

Southeast Asian J Trop Med Public Health. 2004 Mar;35(1):113-8.

PMID:15272753

Abstract

We present the first definitive evidence that the mite Neotrombicula nagayoi bites humans under natural conditions in Japan. Initially, bites resulted in mild pruritus without pain. However, skin reactions increased gradually year by year with severe pruritus with pain being reported by the victim after being bitten repeatedly. Six species of trombiculid mites comprising three genera were isolated from soil samples collected from August to October in both 2001 and 2002 at a study site where a man was bitten by N. nagayoi. The dominant species was L. intermedium (72.4%) followed by L. pallidum (8.3%) and N. nagayoi (8.1%). N. nagayoi was found only in August and September. We did not detect the pathogen Orientia tsutsugamushi in any of the unfed larvae, including N. nagayoi, collected from the soil samples.

摘要

我们提供了首个确凿证据，证明日本真恙螨（Neotrombicula nagayoi）在自然条件下会叮咬人类。最初，叮咬只会引起轻微瘙痒，并无疼痛感。然而，皮肤反应逐年逐渐加剧，受害者在多次被咬后报告出现伴有疼痛的剧烈瘙痒。在2001年和2002年8月至10月从一名男子被日本真恙螨叮咬的研究地点采集的土壤样本中，分离出了包括三个属的六种恙螨。优势种为中间型恙螨（L. intermedium，占72.4%），其次是苍白恙螨（L. pallidum，占8.3%）和日本真恙螨（占8.1%）。日本真恙螨仅在8月和9月被发现。在从土壤样本中采集的任何未进食幼虫（包括日本真恙螨）中，我们均未检测到恙虫病东方体病原体。