Saliva is the Key Element for Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Mass Screening.

The article highlights a study that distinguishes severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) from severe acute respiratory syndrome coronavirus (SARS-CoV) and Middle East respiratory syndrome–related coronavirus (MERS-CoV). It discusses that the findings have pointed out how the viral load in COVID-19 is high at the very onset of the disease and then decreases over time, underlining the probability of a high load also in the presymptomatic phase.