CDC - Fever, aches, and chills. Is it a cold or flu? While both are contagious respiratory illnesses, colds generally do not result in serious health problems, and flu can have very
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Snohomish County Health Department - The contagious periods for cold, flu or COVID are not all the same. Remember that you may be contagious before symptoms start and for days – even
WebMD - You don't want to pass on germs when you're feeling sick. But it could happen if you don't know how long you're contagious. This chart can help: https://wb.md/39qGEfw | Facebook