ABSTRACT
Objective To understand the etiological features of diarrhea in Xiangyang city and to provide a scientific basis for the prevention and control of diarrhea. Methods A total of 1 142 stool samples were collected from diarrheal patients admitted to the First People's Hospital of Xiangyang from 2013 to 2017 anwere tested for pathogens. The pathogenic composition, population characteristics and time distribution of diarrheal patients were analyzed. Results Of the 1 142 diarrheal patients, 737 patients (64.54%) were tested negatively. Of the 405 patients tested positively, adenovirus was the most prevalent, with proportion of 38.27% (155 patients), followed by norovirus and rotavirus. Only 20 patients (4.94%) were tested as bacterial infection. Infectious diarrhea showed obvious seasonality, with largest infectious proportion in April-June. Patients younger than 1 year old were the most susceptible to infectious diarrhea and the proportion was 29.63% (120 patients). Conclusions The majority of infectious diarrhea was viral diarrhea, and the main pathogen was adenovirus and norovirus. Only a very small proportion of diarrhea was due to bacterial infection. The guidance for infant's feeding and the surveillance and control of virus diarrhea for infants should be strengthened.
ABSTRACT
Objective To investigate the epidemiological characteristics of COVID-19 outbreaks in Xiangyang, and to provide a scientific basis for curbing the development of the epidemic. Methods A retrospective epidemiological investigation was conducted to analyze the epidemiological characteristics of confirmed COVID-19 cases in the city from January 1 to April 30, 2020. Results Confirmed COVID-19 cases were reported throughout the city, and the epidemic situation decreased significantly after February. The median age of confirmed cases was 47 years old, and most of them were 25-65 years old (86.89%). The average interval time between first diagnosis and admission was 5.23 days, while the average interval time between diagnosis and confirmation was 1.69 days. As time went on, the time intervals between the first diagnosis and admission and between diagnosis and confirmation were significantly shortened. The higher the proportion of previous underlying diseases was, the more serious the COVID-19 infection was (χ2=44.40, P<0.05). Conclusion The infection of COVID-19 in Xiangyang is highly contagious, but the cluster epidemic was mainly mild. Novel coronavirus infection is closely related to occupational exposure, with young and middle-aged people being high-risk populations. Early diagnosis, early isolation, comprehensive treatment and active control of chronic underlying diseases are crucial to the control of COVID-19.