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: April 25, 2025
Page reviewed: April 25, 2025
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