1 Subjects: “...severe acute respiratory syndrome coronavirus 2...”

2 Subjects: “...severe acute respiratory syndrome coronavirus 2 (SARS-CoV2)...”

3 “...Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causes the coronavirus disease 2019...”

4 “...Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causes the coronavirus disease 2019...”