天津市北部农村首次发现恙虫病流行的报告

1989年和1990年秋,天津市北部农村相继发生恙虫病流行。通过临床、流行病学、血清学和病原学方面的调查,结果44例病人经IFA法检测,42例病人恢复期血清抗体滴度≥1:40(95.5%),其余2例病人采血时间过早。用CF法分型测定了10份血标本,滴度≥1:20者8份,均为Gilliam型。病原分离未获成功。该地位于北纬39°45''~40°05'',系我国新发现的恙虫病流行地区。

Report on First Finding an Epidemic of Scrubtyphus in North Rural Areas, Tianjin

In the autumn of 1989 and 1990, an epidemic of Scrub typhus occurred in north rural areas in Tianjin. The authors investigated the epidemic on clinical, epidemiological, serological and etiological features, 44 patients were diagnosed serologically or clinically as Scrub typhus and 42 of them (95.5%) were diagnosed serologically by IFA method. 10 sera specimens collected from the patients were determined distinctively by CF method, 8 of them were > or = 1:20 titre to Gilliam type antigen of tsutsugamushi. The try for isolating pathogens failed of success. The epidemic areas is situated in 39.45'-40.05' north latitudes and showed it was the new epidemic area in the north of China.