...researchers have found that viruses that surge in the winter, including influenza viruses and SARS-CoV-2 — the coronavirus that causes COVID-19 — survive best when the relative humidity in the air falls below about 40 percent.
Exactly how long protection lasts after a COVID infection isn’t one-size-fits-all. A few factors make it impossible to say exactly how long you’re protected from reinfection.
Researchers found that over the past 20 years, a growing number of Americans with job-based health insurance have been skipping medical care due to costs. Women have been particularly hard-hit.
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