Surveillance of infectious diarrhea in Dongguan, 2012

Objective To understand the epidemiological characteristics and distribution of epidemic strains of cholera and other key infectious diarrhea in Dongguan in 2012 and provide evidence for the prevention and control. Method The epidemiology analysis was conducted on the data of symptom and etiological surveillance of cholera and other key infectious diarrhea in 2012. Results The proportion of diarrhea cases was 4.15%. The epidemic peak was from October to December.The pathogens were detected in 268 samples, with a positive rate of 31.98%.The viral diarrhea showed obvious seasonal pattern.The prevalent virus was rotavirus from October to December,and norovirus from February to September.The proportion of diarrhea cases and the total outpatients clinic cases was positively correlated with the detection rate of the pathogen(correlation coefficient:0.66,P 0.05). Conclusions The incidence peaks of infectious diarrhea were in autumn and winter in Dongguan. The predominant strain varied with season. The focus group of diarrhea virus infection was the children of 0-1 age group.