the vaccines developed so far have been designed to induce Abs targeting the SARS-CoV-2
spike. Many studies have examined Ab responses in the blood from vaccinated and infected
individuals. However, since SARS-CoV-2 is a respiratory virus, it is also critical to
understand the mucosal Ab responses at the sites of initial virus exposure. Here, we
examined plasma versus saliva Ab responses in vaccinated and convalescent patients …