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本文报道江苏省东台市发生的一起恙虫病爆发流行。患者264人,分布于3个乡镇19个村,罹患率为6.0％。临床表现典型,均有发热,大多数有焦痂或溃疡(63.89％)、淋巴结肿大(80.56％)和皮疹(74.21％)。经用斑点酶标染色法检测患者早期血清IgM,阳性率为82.24％,IgG阳性率为52.08％,恢复期血清IgG阳性率为95.54％。褐家鼠和小盾纤恙螨分别为当地的优势鼠种和优势螨种,它们可能是本病的主要储存宿主和传播媒介。
This article reports the outbreak of tsutsugamushi disease in Dongtai City, Jiangsu Province. 264 patients, distributed in 19 villages in 3 townships, the attack rate of 6.0%. Clinical manifestations are typical, have fever, most of the eschar or ulcer (63.89%), lymphadenopathy (80.56%) and rash (74.21%). The positive rate of IgM in early serum was 82.24%, the positive rate of IgG was 52.08% and the recovery rate of serum IgG was 95.54%. Rattus norvegicus and Chigger mite are the dominant species of rodents and dominant species of mites, respectively, which may be the main storage host and transmission medium for this disease.