Objective To document the investigation and control of an outbreak of gastroenteritis in City G, South China, and provide a reference for preventing future outbreaks. Methods An ambispective cohort study was designed....Objective To document the investigation and control of an outbreak of gastroenteritis in City G, South China, and provide a reference for preventing future outbreaks. Methods An ambispective cohort study was designed. Attack rate （AR） and relative risks （RR） were calculated to identify the causes of gastroenteritis. Investigations using questionnaires included personal interviews with patients and doctors, reviews of medical records, laboratory examinations of fecal specimens and continuous hygiene monitoring of water samples from the waterworks. Results Overall, 427/71534 （AR=5.97%o） cases were identified between October 31 and November 12 2010. Geographic distribution was highly localized, with 80% of cases occurring in the areas supplied by waterworks-A. Consumption of water provided solely by waterworks-A was found to be associated with illness （RR=8.20, 95 C1%：6.12-10.99） compared with that from waterworks-B. Microbiological analyses confirmed the presence of Norovirus in six of eight fecal samples from symptomatic patients, two water samples from waterworks-A and two sewage samples. After taking effective measures, the hygienic indices of waterworks-A met health criteria again on November 9 and no cases were reported 3 days later.Conclusion The outbreak reported here was caused by drinking tap water contaminated with sewage at the source. Early identification of possible contamination sources and awareness of changes that might negatively impact water quality are important preventive measures to protect public health.展开更多
Social services are a protection system that seeks to assist people throughout their lives.Innovation is essential for enabling us to respond to the problems that society is currently facing and to adapt to our changi...Social services are a protection system that seeks to assist people throughout their lives.Innovation is essential for enabling us to respond to the problems that society is currently facing and to adapt to our changing world.This paper validates an instrument based on the Public Innovation Hexagon(PIH),for measuring the degree to which an innovation culture is being implemented in the Spanish social services system.A sample group of social services professionals were asked to complete a questionnaire based on the variables that make up the PIH model.After our initial validation of the PIH model,we reduced the 42 initial items to 32,while maintaining the initial six dimensions.The objective was to eliminate redundant items and ensure that the resulting end model was more solid and reliable.The new improved model(PIHn)that we created achieved greater consistency with a smaller number of items while maintaining the initial six dimensions.展开更多
基金supported by Sci‐tech Research Project of Guangdong Province, Grant Nor: 2008B030303041Key Medical Science and Technology Research Projects of Guangzhou Municipality, Grant No: 2008‐ZDi‐12
文摘Objective To document the investigation and control of an outbreak of gastroenteritis in City G, South China, and provide a reference for preventing future outbreaks. Methods An ambispective cohort study was designed. Attack rate （AR） and relative risks （RR） were calculated to identify the causes of gastroenteritis. Investigations using questionnaires included personal interviews with patients and doctors, reviews of medical records, laboratory examinations of fecal specimens and continuous hygiene monitoring of water samples from the waterworks. Results Overall, 427/71534 （AR=5.97%o） cases were identified between October 31 and November 12 2010. Geographic distribution was highly localized, with 80% of cases occurring in the areas supplied by waterworks-A. Consumption of water provided solely by waterworks-A was found to be associated with illness （RR=8.20, 95 C1%：6.12-10.99） compared with that from waterworks-B. Microbiological analyses confirmed the presence of Norovirus in six of eight fecal samples from symptomatic patients, two water samples from waterworks-A and two sewage samples. After taking effective measures, the hygienic indices of waterworks-A met health criteria again on November 9 and no cases were reported 3 days later.Conclusion The outbreak reported here was caused by drinking tap water contaminated with sewage at the source. Early identification of possible contamination sources and awareness of changes that might negatively impact water quality are important preventive measures to protect public health.
文摘Social services are a protection system that seeks to assist people throughout their lives.Innovation is essential for enabling us to respond to the problems that society is currently facing and to adapt to our changing world.This paper validates an instrument based on the Public Innovation Hexagon(PIH),for measuring the degree to which an innovation culture is being implemented in the Spanish social services system.A sample group of social services professionals were asked to complete a questionnaire based on the variables that make up the PIH model.After our initial validation of the PIH model,we reduced the 42 initial items to 32,while maintaining the initial six dimensions.The objective was to eliminate redundant items and ensure that the resulting end model was more solid and reliable.The new improved model(PIHn)that we created achieved greater consistency with a smaller number of items while maintaining the initial six dimensions.
