Flu, COVID, RSV and measles: how to tell the four viruses apart

Summary
How to tell flu, COVID, RSV and measles apart, from onset speed and rash timing to incubation periods, testing options, vaccines and the warning signs that need urgent care
Description from Quartz.
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Flu, COVID, RSV and measles: how to tell the four viruses apart
How to tell flu, COVID, RSV and measles apart, from onset speed and rash timing to incubation periods, testing options, vaccines and the warning signs that need urgent care
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