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October 1, 2014

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Health workers in full protective gear pick up killed chickens in plastic bags after suffocated them by using carbon dioxide at a wholesale poultry market in Hong Kong, Tuesday, Jan. 28, 2014.

Vincent Yu / AP

Health workers in full protective gear pick up killed chickens in plastic bags after suffocated them by using carbon dioxide at a wholesale poultry market in Hong Kong, Tuesday, Jan. 28, 2014.