Even if you’re feeling fine, you might be infected by the SARS-CoV-2 virus that causes COVID-19.
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Your body can be infected and fight off SARS-CoV-2 without your ever noticing.
Mary Mallon, after being institutionalized on Brother Island in New York.
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TyphoidMary is shorthand today for those who defy social distancing orders. The real Typhoid Mary is perhaps the most prominent example in the US of the unknowing disease carrier.
Camp beds set up for travelers returning to Germany from China, who will be isolated for two weeks to make sure they don’t have coronavirus.
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Even before people understood how germs spread disease, they tried to isolate the sick to keep them from infecting others.