Tag
flu transmission stages
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When Is the Flu Contagious? The Hidden Timeline of Viral Spread
What makes the flu’s contagious period even more deceptive is its two-phase lifecycle: the pre-symptomatic phase, where you’re asymptomatic but infectious, and...
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When Is Flu Contagious? The Exact Timeline You Need to Know
What makes this even more critical is how long the virus lingers. Unlike a cold, which might fade within a week, the flu can remain contagious for nearly a...
