"What is common to the two markets in which the #SARS and #corona viruses erupted is the high concentration of different #animal types in dense conditions, allowing the transmission of #viruses from one to another. The interaction of the three (bat-pangolin-human) depends on close proximity. As Peter Li, a professor of animal trafficking in China, explained,‘The #cages are stuffed with each other. The animals at the bottom are soaked in fluids. One after the other.’ This is exactly how viruses emerge."