Crowds

In my early career I was in the chicken business. Baby chicks from the hatchery are placed in grow out barns with 20,000 in a barn. They are medicated because if one gets sick they all get sick. The same might be said for humans who live crammed together in urban areas. It was popular for environmentalist to suggest that people move back from the suburbs to the city to save on transportation cost and get rid of large homes and big yards. With the onset of the virus they may want to reconsider. The big cities crowd people together just like the chickens.