Tag
viral load and contagion
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When Is a Cold Contagious? The Science Behind Viral Spread
What makes this even more perplexing is how contagion aligns with viral load—peaking not at symptom onset, but during the first 2–3 days of illness, when...
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When Are You No Longer Contagious With Covid? Science, Timelines & What Experts Say
The truth is more nuanced. Studies reveal that when you stop being contagious with Covid depends on whether you’re vaccinated, boosted, or immunocompromised...