Table 1.
Number of agricultural exhibitions with pigs testing positive for respiratory viruses by state
| State | Negative | IAV | PPIV1 | PHEV | PRRSv | IDV |
|---|---|---|---|---|---|---|
| Ohio | 20 | 13 | 15 | 12 | 6 | 1 |
| Indiana | 12 | 17 | 14 | 14 | 5 | 1 |
| Michigan | 8 | 5 | 1 | 0 | 1 | 0 |
| West Virginia | 1 | 0 | 0 | 0 | 0 | 0 |
| Kentucky | 0 | 1 | 1 | 1 | 0 | 0 |
| Iowa | 0 | 1 | 1 | 1 | 1 | 0 |
| Total | 41 | 37 | 32 | 28 | 13 | 2 |
Individual swine nasal samples from 102 agricultural exhibitions across six states were tested for five respiratory viruses using real-time reverse transcription polymerase chain reaction. The number of swine exhibitions with ≥ 1 pig positive for each pathogen are shown by state. Out of the 102 exhibitions tested, at least one pathogen was detected in the pigs at 63 (61.8%). The pigs at 31 (30.4%) exhibitions were positive for more than one virus.
IAV: influenza A virus, PPIV1: porcine parainfluenza virus 1, PHEV: porcine hemagglutinating encephalomyelitis, PRRSv: porcine reproductive and respiratory syndrome virus, IDV: influenza D virus.