13 photographs of a dairy and testing milk in a laboratory, Southern California, 1940. "Subject: Dairy scenes & laboratory testing, Hall of Justice." "Client: Milk Industries; Agency: Lord [&] Thomas,
Abstract Coronavirus disease (COVID-19) is a pandemic caused by a new coronavirus, called SARS-CoV-2. This disease was first identified in December 2019 and rapidly developed into a challenge to the p
