Tag
respiratory viruses
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When Does Flu Season End? The Science, Timeline, and What You Must Know
The flu’s persistence also reflects a global imbalance. In the Southern Hemisphere, where winter falls from June to August, flu season peaks before Northern...
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The Hidden Timeline: When Contagious with a Cold—and What It Really Means
What’s more, the contagious phase doesn’t align neatly with symptom severity. A person might feel fine—no fever, no congestion—yet still harbor enough viral...