Editor, Gazette-Journal:There are many things that we do not yet know about the COVID-19 virus. But there are things that we do know:

It is very contagious.It can be fatal.It is worldwide.People can be infected, have no symptoms and yet infect others.There is, at present, no vaccine and treatment is mainly supportive.Therefore, it is imperative that everyone be tested. Everyone! And more than once. Those shown to be infected must take precautions, be “tracked” and quarantined if necessary to prevent the spread to others.This testing must continue until a vaccine is available and the country adequately protected. This is a duty not of the individual states, but of the federal government, and it must begin without delay.Arthur H. Jennette, M.D.Cardinal, Va.
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