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1.
Shanghai Journal of Preventive Medicine ; (12): 1141-1145, 2021.
Article in Chinese | WPRIM | ID: wpr-907128

ABSTRACT

ObjectiveTo investigate the prevalence and epidemiological characteristics of norovirus in adult cases with infectious diarrhea in Putuo District of Shanghai, and provide scientific evidence for the prevention and control of infectious diarrhea caused by norovirus. MethodsFecal samples, clinical information and epidemiological data were collected from January 2013 through December 2019 in surveillance hospitals in Putuo District of Shanghai. Norovirus was examined by real-time fluorescent quantitative reverse transcription polymerase chain reaction (rRT-PCR). ResultsIn 1 389 adult cases with infectious diarrhea, norovirus positive rate was 25.41%, which was significantly higher in male (27.16%) than female (23.89%). Furthermore, in 353 cases positive for norovirus, GⅡ group was the most common (77.98%).The positive rate was highest in the cases aged 30-44 years. Spring, autumn and winter were the seasons with higher incidence of norovirus (September to May). The norovirus-infected cases had more nausea, vomiting, hyperactivity of bowel sounds, and watery stool, compared to the negative cases (P<0.05). ConclusionThe detection rate of norovirus remains high in adult cases with infectious diarrhea in Putuo District of Shanghai, of which GII is predominant. Seasonality may be spring, autumn and winter. Therefore, it warrants the countermeasures, such as surveillance and health education, for prevention and control of norovirus in susceptible population during epidemic seasons.

2.
Shanghai Journal of Preventive Medicine ; (12): 1141-1145, 2021.
Article in Chinese | WPRIM | ID: wpr-907105

ABSTRACT

ObjectiveTo investigate the prevalence and epidemiological characteristics of norovirus in adult cases with infectious diarrhea in Putuo District of Shanghai, and provide scientific evidence for the prevention and control of infectious diarrhea caused by norovirus. MethodsFecal samples, clinical information and epidemiological data were collected from January 2013 through December 2019 in surveillance hospitals in Putuo District of Shanghai. Norovirus was examined by real-time fluorescent quantitative reverse transcription polymerase chain reaction (rRT-PCR). ResultsIn 1 389 adult cases with infectious diarrhea, norovirus positive rate was 25.41%, which was significantly higher in male (27.16%) than female (23.89%). Furthermore, in 353 cases positive for norovirus, GⅡ group was the most common (77.98%).The positive rate was highest in the cases aged 30-44 years. Spring, autumn and winter were the seasons with higher incidence of norovirus (September to May). The norovirus-infected cases had more nausea, vomiting, hyperactivity of bowel sounds, and watery stool, compared to the negative cases (P<0.05). ConclusionThe detection rate of norovirus remains high in adult cases with infectious diarrhea in Putuo District of Shanghai, of which GII is predominant. Seasonality may be spring, autumn and winter. Therefore, it warrants the countermeasures, such as surveillance and health education, for prevention and control of norovirus in susceptible population during epidemic seasons.

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