https://news.yahoo.com/asymptomatic-coronavirus-carriers-just-contagious-183700969.html
Kathryn Krawczyk
,The Week•August 6, 2020
People who are infected with COVID-19 but don't show symptoms carry about as much of the virus in their nose, throat, and lungs as those with symptoms, a study published Thursday in JAMA Internal Medicine shows. They also carry that viral load just as long as symptomatic people, revealing that even asymptomatic COVID-19 carriers can spread the very contagious virus, The New York Times reports.
While COVID-19 can be devastating and even deadly for people who contract it, approximately 30 percent of people who have the disease show no symptoms, the study showed. That essentially makes it impossible to know if a person is transmitting the virus or not, and is a big reason coronavirus is so hard to contain, the Times notes.
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