Researchers discover proof that SARS-CoV-2 infects cells in the mouth Kumar Jeetendra | March 25, 2021 An international group of scientists has discovered evidence that SARS-CoV-2, the virus that causes COVID-19, infects cells in the mouth. While it’s well known that the upper airways and lungs are primary sites of SARS-CoV-2 disease, there are clues the virus can infect cells in different parts of the body, like the digestive system, blood …