Why don't viruses make their original hosts sick? 5 questions answered
- Written by Marcos E. García-Ojeda, Professor of Molecular and Cell Biology, University of California, Merced

Editor’s note: The coronavirus that has claimed more than 4,000 lives worldwide and sickened more than 113,000 most likely originated in bats, most experts believe. From bats, the virus “jumped” to another species, likely pangolins, and then to humans. Why didn’t the...
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