近40年来伤寒发病率逐年下降,而近年有上升趋势,并有局部暴发流行的报导,且多不具备伤寒典型表现,影响诊断。我院自1975至1988年共发现9例伤寒,1989年升为25例,而1990年5月13日发现第1例病人后,截止10月15日达209例(其中付伤寒17例)。现将本院收治的120例分析如下。一、流行病学本组男38例,女82例。年龄8～55岁,平均26.9岁。工人113例,干部1例,技校学生2例,小学生4例.女性明显多于男性,工人远高于其它,因为一线工人女性多,大多有饮生水史。患者中有母女2人,同时吃生海蚬而患病。发病时间;6月上、中旬1例,下旬5例,7月上旬48例,中 In the past 40 years, the incidence of typhoid fever has been declining year by year, while in recent years there has been an upward trend. There have been reports of local outbreaks, and most of them do not have the typical performance of typhoid fever and affect diagnosis. Nine cases of typhoid fever were found in our hospital from 1975 to 1988, and in 1989, 25 cases were diagnosed. After the first case was found on May 13, 1990, 209 cases (17 cases of typhoid fever) were treated as of October 15. The hospital now treated 120 cases are as follows. First, epidemiology This group of 38 males and 82 females. Aged 8 to 55 years, mean 26.9 years old. There were 113 workers, one cadre, two technical school students and four primary school children. There were significantly more women than men and workers were much higher than the rest because most front-line workers were women and most had a history of drinking and drinking water. There are 2 mothers and 2 women in the patient who suffer from raw sea urchin at the same time. Onset time; in June on the middle and late in 1 cases, 5 cases in late, early July 48 cases, in