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1981~1982年益都县部分大队在秋季集中发生一批原因不明的发热病人,经临床和少数病人的血清学检查,初步确定为斑疹伤寒。为查清当地斑疹伤寒流行型别,以便有
In 1981 and 1982, some battalion of Yidu County concentrated a group of patients with unknown causes of fever in autumn. Serological tests of clinical and minority patients initially identified typhus. To find out the prevalence of typhus in the country, so there