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* indicates summary provided by Alberta Health Services, in English only
Updated June 2013
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Oysters imported into Hong Kong from 11 countries over a 3-year period were examined. Overall, 10.5% of samples were positive for norovirus, with a wide variety of strains.*
Most emerging infectious diseases are zoonotic; wildlife constitutes a large and often unknown reservoir. The leading causes of their emergence are human behaviour and modifications to natural habitats (expansion of human populations and their encroachment on wildlife habitat), changes in agricultural practices and globalization of trade. Other factors include wildlife trade and translocation, live animal and bushmeat markets, consumption of exotic foods, development of ecotourism, access to petting zoos and ownership of exotic pets.*