近年来非伤寒沙门氏菌(以下沙门氏菌略称“沙”)病发病率普通上升。法国5%的急性腹泻病例由沙引起,美国患病率达1%,居民带菌率0.2%。一、近年常见致病菌株目前已知有2000多个血清型致病性沙,最近又分离出一种新血清型Sherbrooke(16:d:1.6)沙,我国截止1977年已发现100个。美国1974年分离的23838株中常见为:鼠伤寒沙7343 In recent years, non-typhoid Salmonella (Salmonella hereinafter referred to as “sand”) the incidence of the disease generally increased. Five percent of cases of acute diarrhea in France are caused by sand, with a prevalence of 1% in the United States and a prevalence of 0.2% for residents. First, in recent years, common pathogenic strains are currently known to have more than 2,000 serotypes of pathogenic sand, and recently isolated a new serum Sherbrooke (16: d: 1.6) sand, as of 1977, China has found 100. Of the 23838 strains isolated in the United States in 1974, they were commonly found as: Salmonella typhimurium 7343