Diagnostic criteria for typhoid fever and paratyphoid fever

According to the diagnostic criteria of typhoid fever and paratyphoid fever, persistent high fever (40~41 ℃) lasting for more than 1~2 weeks, special toxic features, relatively slow pulse, skin rosette, hepatosplenomegaly, low total number of peripheral leukocytes, disappearance of eosinophils, Fidal reaction "O" antibody agglutination titer ≥ 1:80,"H" antibody agglutination titer ≥ 1:160, and 4-fold increase in titer during recovery period can be clinically diagnosed as typhoid fever or paratyphoid fever.

According to the diagnostic criteria of typhoid fever and paratyphoid fever, persistent high fever, special toxic face, relatively slow pulse, skin roseola, hepatosplenomegaly and other symptoms are required in typhoid epidemic season and area, and the total number of white blood cells is low, eosinophils disappear, the agglutination titer of "O" antibody in Widal reaction is ≥ 1:80, and the agglutination titer of "H" antibody is ≥ 1: Typhoid fever and paratyphoid fever are acute infectious diseases caused by typhoid bacilli and paratyphoid bacilli. 2. The main route of transmission of typhoid and paratyphoid fever is fecal-oral route, which is transmitted by eating contaminated food or water. 3. The incubation period of typhoid and paratyphoid fever is 1~2 weeks, the onset is slow, and the body temperature gradually increases, which can reach 39~40 ℃. 4. The complications of typhoid and paratyphoid fever include intestinal hemorrhage and intestinal perforation. 5. The treatment of typhoid fever and paratyphoid fever is mainly to use antibiotics, such as chloramphenicol, ampicillin, etc. 6. The prevention of typhoid fever and paratyphoid fever is mainly to pay attention to food hygiene, strengthen water management, and do a good job in harmless treatment of feces. Key information: The diagnostic criteria for typhoid fever and paratyphoid fever include symptoms, examination results, transmission routes, incubation period, complications, treatment and prevention. In typhoid epidemic season and areas, if there are persistent high fever symptoms, should seek medical attention in time, and related examination and treatment. At the same time, pay attention to food hygiene, strengthen preventive measures, can effectively reduce the occurrence of typhoid paratyphoid fever.