Study Demonstrates Saliva Can Spread Novel CoronavirusPosted on April 22nd, 2021 by Dr. Francis CollinsCaption: SARS-CoV-2 (pink) and its preferred human receptor ACE2 (white) were found in human salivary gland cells (outlined in green). Credit: Paola Perez, Warner Lab, National Institute of Dental and Craniofacial Research, NIHCOVID-19 is primarily considered a respiratory illness that affects the lungs, upper airways, and nasal cavity. The study, published in the journal Nature Medicine, shows that SARS-CoV-2, which is the coronavirus that causes COVID-19, can actively infect cells that line the mouth and salivary glands. They also knew from diagnostic testing that the saliva of people with COVID-19 can contain high levels of SARS-CoV-2. The researchers suggest that virus-laden saliva, when swallowed or inhaled, may spread virus into the throat, lungs, or digestive system.
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