Table 1.
Recurrent Human Coronaviruses (HCoV) Infections of the Respiratory Tract
| HCoV | Reinfection With the Same HCoV | Reinfection With a New HCoVa | P Value | ||
|---|---|---|---|---|---|
| Observed | Expected | Observed | Expected | ||
| OC43 | 1 | 4.5 | … | … | |
| NL63 | 3 | 5.6 | … | … | |
| HKU1 | 2 | 3.0 | … | … | |
| 229E | 0 | 0.4 | … | … | |
| All | 6 | 13.5 | 41 | 33.5 | P = .012b |
aOne patient tested positive for the same HCoV in a second sample and another HCoV in a third sample.
bThe χ 2 test was used to calculate the difference between observed and expected numbers of reinfections with the same or a new HCoV.