15 research outputs found

    Efficacy of live attenuated seasonal and pandemic influenza vaccine in school-age children: a randomized controlled trial

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    Poster Presentation: SPA5 - How to Evaluate Vaccine Effectiveness and Efficacy?: abstract no. A508PBACKGROUND: A novel pandemic influenza A(H1N1) virus emerged in North America in early 2009 and rapidly spread worldwide. Monovalent pH1N1 vaccines were licensed later in 2009 based on preliminary studies demonstrating their immunogenicity and safety. In this study we report the efficacy of live attenuated monovalent pH1N1 vacc...postprin

    Is Labelling the Way Forward to Delineate Green Construction Materials?

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    Section II-Green Construction Materials II-2 Green Labelling and Carbon Footprint of Construction MaterialsConference theme: Green Building and Construction Materials – Challenges for Innovation and Excellenc

    Environmental impacts of construction material production

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    Sustainable development of Hong Kong’s construction industry – what do we need?

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    Department of Building and Real Estat

    Coping with structural change in construction: experiences gained from advanced economies

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    As an economy approaches maturity, the relative importance of the construction sector would gradually decline. Without effective policies and strategies, the construction industry will suffer irreversably and this may trigger a knock-on effect to the overall economy. The experiences of selected advanced economies are examined, including Australia, Japan, Singapore, South Korea and the UK in coping with structural changes in construction. Strategies employed by the government and the construction industry of these advanced economies to reinvent the construction industry were captured through an extensive literature review and a series of interviews with indigenous industry practitioners. In order to revitalize the construction industry, governments would accelerate publicly funded projects; provide financial support to ease the burden of industry stakeholders; and stimulate the market demand. In contrast, the industry would explore various market alternatives while companies would sharpen their competitive advantage locally and internationally through merger and acquisition. The identified strategies are corresponded to a construction industry development framework, which could therefore serve as a valuable reference for policy makers and practitioners to rejuvenate construction demand when a country approaches an urban service economy.link_to_subscribed_fulltex

    Seroepidemiological survey of hepatitis E in Hong Kong by recombinant-based enzyme immunoassays

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    The agent that causes the enterally transmitted form of non-A, non-B hepatitis has been cloned and called hepatitis E virus (HEV). We have carried out a seroepidemiological survey on the prevalence of hepatitis E in Hong Kong. In a retrospective study, serum from 394 patients with acute viral hepatitis and 355 healthy subjects was tested for antibodies to HEV (anti-HEV) with a recombinant based enzyme immunoassay. 65 (16.5%) patients with hepatitis were positive for IgM anti-HEV and 23 (5.8%) were also positive for IgM anti-HEV. Of 18 patients diagnosed as having acute non-A, non-B, non-C hepatitis, 6 were IgM anti-HEV positive. 17 (6%) patients in whom acute hepatitis A was diagnosed were also infected wit HEV. None of 70 patients with acute hepatitis B or C or exacerbation of chronic hepatitis B was IgM anti-HEV positive. 57 (16.1%) of the healthy subjects were positive for IgG anti-HEV. The prevalence of IgG anti-HEV was higher in subjects over 20 years old than in younger subjects (24% vs 4%, p < 0.0001). IgG anti-HEV was detected in 26% of subjects who were positive for IgG antibody to HAV and in 7% of those negative for that antibody (p < 0.0001). We demonstrated the validity of the recombinant-based enzyme immunoassays for the diagnosis of hepatitis E. Our results suggest that hepatitis E accounts for a third of non-A, non-B, non-C hepatitis in Hong Kong and that coinfection of hepatitis A and E can occur.link_to_subscribed_fulltex
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