Calvin Cheng

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In winter 2008, kindergartens and primary schools in Hong Kong were closed for 2 weeks after media coverage indicated that 3 children had died, apparently from influenza. We examined prospective influenza surveillance data before, during, and after the closure. We did not find a substantial effect on community transmission.
Executive Summary Service-Oriented Computing (SOC) is a new computing paradigm that has been adopted by major computer companies as well as government agencies such as the Department of Defense for mission critical applications. SOC is being used for developing Web and electronic business applications , as well as robotics, gaming, and scientific(More)
BACKGROUND Great strides have been made exploring and exploiting new and different sources of disease surveillance data and developing robust statistical methods for analyzing the collected data. However, there has been less research in the area of dissemination. Proper dissemination of surveillance data can facilitate the end user's taking of appropriate(More)
BACKGROUND Influenza surveillance systems provide important and timely information to health service providers on trends in the circulation of influenza virus and other upper respiratory tract infections. Online dissemination of surveillance data is useful for risk communication to health care professionals, the media and the general public. We reviewed(More)
BACKGROUND Since SARS epidemic in 2003, Hong Kong has experienced several major epidemic risks, but how general community might react to the repeated infectious diseases health risks have not been studied. In 2013, imported human H7N9 influenza infected cases from China were reported. Our study aims to assess the knowledge, attitude and practice (KAP)(More)
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