Symptoms as Clues: Is It RSV, COVID, the Flu or the Common Cold? How quickly the symptoms come on, how long they last, and even which symptom(s) you have can be important clues.
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Symptoms as Clues: Is It RSV, COVID, the Flu or the Common Cold? How quickly the symptoms come on, how long they last, and even which symptom(s) you have can be important clues.
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