1 Subjects: “...hospital acquired infection...”

2 Subjects: “...intentional infection...”

3 Subjects: “...infection spread and control...”

4 Subjects: “...pulmonary infection...”

5 Subjects: “...cell-free infection...”

6 Subjects: “...latent TB infection...”

7 Subjects: “...infection...”

8 Subjects: “...infection...”

9 Subjects: “...infection...”

10 Subjects: “...malaria infection...”

11 Subjects: “...viral infections...”

12 Subjects: “...infection...”

13 Subjects: “...infection...”

14 Subjects: “...daily infections by COVID-19...”

15 Subjects: “...infection rate...”

16 Subjects: “...infection rate...”

17 Subjects: “...infection rate...”