A member of People for the Ethical Treatment of Animals (PETA), dressed as Santa Claus wearing a gas mask, protests in Hong Kong December 8, 2005, urging the public to go vegetarian in order to stop the spread of bird flu. The pro-animal group said both intensive 'factory' farms and smaller 'backyard' farms, common throughout Asia, pose a deadly risk of spreading the H5N1 virus to consumers.