Preventive Medicine Center

China stated in January, 2020, that this corona virus could not be transmitted from person to person: that, too, was wrong. The first overseas case was 1/15/20. The first USA case was 1/21/20. The city of Wuhan, China, (not the whole country) lockdown began 1/31/20. The shutdown of immigration to the USA for non-Americans began 1/31/20. ................
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