“The animals are packed in tiny spaces and often in close contact with other wild and/or domesticated animals such as dogs and cats,” the survey team wrote. “Many are either sick or with open wounds and without basic care. Animals are often slaughtered inside the markets in several stalls specialising in this.” Open wire cages, stacked vertically, allowed wastes from one animal to rain down onto another. It was zoological bedlam. “The markets also provide a conducive environment,” the team noted, almost passingly, “for animal diseases to jump hosts and spread to humans.”