Table 4.
MDCK 33016PF passages of field samples tested positive or questionable for respiratory tract viruses.
| Viruses detected (no. of samples) | ||
|---|---|---|
| Original clinical sample | 2nd passage MDCK 33016PF | 3rd passage MDCK 33016PF |
| Enterovirus (16) | None (15), Enterovirus (1, questionable) | None (16) |
| Rhinovirus (12) | None (12) | nt |
| Coronavirus (9) | None (8), Coronavirus (1, borderline) | None (9) |
| Resp. Syncytial Virus (8) | None (7), RSV (1, questionable) | None (8) |
| Adenovirus (3) | None (3) | nt |
| Human metapneumovirus (3) | None (3) | nt |
| Parainfluenza virus (2) | None (2) | nt |
| Bocavirus (1) | None (1) | nt |
Three double infections were counted individually. Maximum dilution of the original specimen for the 2nd passages was 2 × 104 3rd passage was done 1:10 from 2nd passage supernatant. nt: not tested.