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从医院污水中分离出的３０株沙门氏菌噬菌体中选出１１株，与Ｆｅｌｉｘ０－Ⅰ噬菌体组成为一个分型噬菌体配套，用于沙门氏菌各个血清型的分型。有２０个省市自治区送来菌株，从集中分型的２３４８株中分出３１个型和２０个未定型。检出最多的９个型依次为７７７４（４８．０％）、０７７４（１７．１％）、６７７４（７．７％）、４７７４（７．３％）、５７７４（３．３％）、３７７４（２．２％）、４０００（２．１％）、００００（１．８％）和７０００（１．７％）。医院内感染爆发和食物中毒爆发，大多数均由７７７４和４７７４型引起。还分析了家鸭、猪、鼠类、螺蛳及污水中鼠伤寒沙门氏菌的型别及其在流行中的意义。
Of the 30 Salmonella phages isolated from the hospital sewage, eleven strains were selected, which were combined with Felix0-I bacteriophage to form a typing phage for typing of each Salmonella serotype. In 20 provinces, municipalities and autonomous regions sent the strains, 31 types and 23 cases were sorted out from the 2348 strains classified. The top 9 detected types were 7774 (48.0%), 0774 (17.1%), 6774 (7.7%), 4774 (7.3%), 5774 (3.3%), 3774 (2.2%), 4000 (2.1%), 0000 (1.8%) and 7000 (1.7%). Outbreaks in hospitals and outbreaks of food poisoning are mostly caused by types 7774 and 4774. The types of Salmonella typhimurium in domestic duck, pig, mouse, snail and sewage were also analyzed and their significance in the epidemic.