COVID-19 studies should also focus on mucosal immunity, researchers argue

Anyone who has undergone a nasal swab or saliva test for COVID-19 knows that the virus is most easily detected in the nose and mouth. That's why, University at Buffalo researchers argue in a new paper, more COVID-19 studies should be devoted to how immunity emerges to SARS-CoV-2 in the mucous membranes of the nose and mouth.