TABLE 1.
PCR results for potential pathogens
| Pathogen (test method reference) | No. (%) positive by PCR |
||
|---|---|---|---|
| Period 1a (n = 2) | Period 2b (n = 31) | Period 3c (n = 12) | |
| Adenovirus (18) | 0 (0) | 0 (0) | 0 (0) |
| Coronavirus (9)d | 0 (0) | 2 (6.5) | 2 (12.5) |
| Influenza virus A (11) | 0 (0) | 0 (0) | 0 (0) |
| Influenza virus B (11) | 0 (0) | 0 (0) | 0 (0) |
| Respiratory syncytial virus (12) | 0 (0) | 0 (0) | 0 (0) |
| Bordetella pertussis (17) | 0 (0) | 0 (0) | 0 (0) |
| Chlamydophila pneumoniae (17) | 0 (0) | 0 (0) | 0 (0) |
| Legionella pneumophila (17) | 0 (0) | 0 (0) | 0 (0) |
| Mycoplasma pneumoniae (17) | 0 (0) | 24 (77.4) | 1 (8.3) |
a
Samples collected before 31 January 2007.
b
Samples collected between 1 February and 23 May 2007.
c
Samples collected between 24 and 26 May 2007.
d
One of the type-specific coronavirus PCR tests was developed and validated by Kay Holmes and Mary Catherine Smith at the Colorado Health Sciences Center, Denver, and has not been published.