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Volume 31, Number 5—May 2025
Dispatch
High Prevalence of Influenza D Virus Infection in Swine, Northern Ireland
Paula Lagan and Ken Lemon
Table
Coinfection status, clinical signs, and links to cattle of sampled farms showing high prevalence of influenza D virus infection in swine, Northern Ireland*
| Farm no. | Farm type | IAV status (type) | IDV status | PRRSV status (strain) | Clinical signs | Multispecies farm |
|---|---|---|---|---|---|---|
| 2155 | Farrow-to-finish | Negative | Positive | Negative | None | Cattle graze beside unit, and 1 worker works on cattle farm |
| 2156 | Farrow-to-finish | Positive (untyped) | Positive | Negative | None | Cattle graze beside unit, and 1 worker works on cattle farm |
| 2157 | Farrow-to-finish | Inconclusive | Negative | Negative | Unknown | No cattle |
| 2158 | Farrow-to-wean | Negative | Negative | Negative | Unknown | Extended family keeps cattle |
| 2159 | Farrow-to-finish | Negative | Negative | Inconclusive | Unknown | Dairy cattle on farm |
| 2160 | Farrow-to-finish | Positive (H1N2) | Positive | Positive (field strain) | Death and slow growth | Unspecified cattle on farm |
| 2161 | Farrow-to-finish | Negative | Negative | Positive (field strain) | Unknown | Extended family keeps cattle |
| 2162 | Farrow-to-finish | Positive (PH1N1) | Negative | Negative | Unknown | Dairy cattle on farm |
| 2163 | Farrow-to-wean | Negative | Positive | Positive (field strain) | Death and slow growth | Unspecified cattle on farm |
| 2164 | Farrow-to-finish | Inconclusive | Negative | Positive (field strain) | Unknown | No cattle |
| 2167 | Farrow-to-finish | Positive (untyped) | Negative | Positive (field strain) | Unknown | Beef cattle on farm |
| 2168 | Farrow-to-finish | Negative | Positive | Negative | None | Unspecified cattle on farm |
| 2169 | Farrow-to-finish | Negative | Negative | Negative | Unknown | Beef cattle on farm |
| 2170 | Farrow-to-wean | Positive (H1N2) | Positive | Positive (field strain) | Death and slow growth | Unspecified cattle on farm |
| 2171 | Farrow-to-finish | Negative | Negative | Negative | Unknown | Dairy cattle on farm |
| 2172 | Farrow-to-finish | Negative | Negative | Negative | Unknown | Beef cattle on farm |
| 2179 |
Farrow-to-finish |
Positive (untyped) |
Positive |
Negative |
Unknown |
Unspecified cattle on farm |
| *IAV, influenza A virus; IDV, influenza D virus; PRRSV, porcine reproductive and respiratory syndrome virus. | ||||||
Page created: March 11, 2025
Page updated: March 26, 2025
Page reviewed: March 26, 2025
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