SARS-CoV-2 is difficult to contain because many transmissions occur during pre-symptomatic infection. Unlike influenza. most SARS-CoV-2-infected people do not transmit while a small percentage infect large numbers of people. We designed mathematical models which link observed viral loads with epidemiologic features of each virus. https://ddqandysyfhi10.timeblog.net/70683100/generating-user-privacy-controllable-synthetic-data-for-recommendation-systems