Application of syndromic surveillance in the emergency events

Abstract

Objective To evaluate syndromic surveillance effect in the emergency events, nethod We collected data from doctors using outpatient registers in the temporary settlements. Analysis, interpretation and dissemination of data were implemented daily by designated medical personnel of local CDC. symptoms were categorized in 4 clusters including respiratory symptoms(cough, angina, sniveling), gastrointestinal symptoms(diarrhea, nausea, vomiting), fever symptoms(T≥37.3 ℃ ) and miscellaneous symptoms( dizziness, headache, nerveless and other symptoms ). Specimens of suspect case were collected for laboratory confirmation. Results Overall, 73% outpatients were identified, included 44% respiratory symptoms, 9% gastrointestinal symptoms, 1% fever symptoms, 46% miscellaneous symptoms, 21% outpatients were 60 years old and above. The sex ratio is 0.76:1. Remove miscellaneous symptoms, respiratoryend gas trointesfinalend fever symptoms were totally 4380 capita and the peak of prevalence rate occurred at 30th March and 3rd April. One suspect measles case was reported on 29th, blood specimen were tested, and confirmed nettle rash and avoided inoculation of measles. 71 fever (T≥37.3 ℃ )patients were detected including 8 high fever patient(T≥39 ℃ ). An outbreak of suspicious acute hemorrhagic conjunctivitis(AHC)was detected and all of 21 cases were investigated, and confirmed acute eye irritation caused by hydrogen sulfide. Conclusions Syndromic surveillance enables us to show the trend quickly and it can be carried out with smaller costs. Syndromic surveillance is effective in the emergency events. It should be considered to apply at similar events. Key words: Infectious diseases; Syndromic surveillance; Outbreak