Volume 30, Number 12—December 2024
Research
Highly Pathogenic Avian Influenza A(H5N1) Virus Infection in Cats, South Korea, 2023
Table 2
Detection of H5 genes and H5 HPAIV in raw cat food in study of HPAIV A(H5N1) infection in cats, South Korea, 2023*
Sample source | Sample | Manufacturing date | H5 Ct | EID50/g | Strain name |
---|---|---|---|---|---|
Collected from shelter 2 |
Raw cat food† (duck meat) |
2023 Jul 6 |
28 |
103.5 |
A/environment/Korea/M305E-13/2023(H5N1) |
Collected from manufacturer A‡ or the buyer of the foods under tracking investigation† | Raw cat food (duck meat) |
2023 May 26 | 27 | 102.5 | A/environment/Korea/M305E2–24/2023(H5N1) |
2023 Jun 15 | 28 | 103.0 | A/environment/Korea/M305E2–25/2023(H5N1) | ||
2023 Jul 27 | 29 | 103.5 | A/environment/Korea/M305E3–1/2023(H5N1) |
*Ct, cycle threshold; EID50, 50% egg infectious dose; HPAIV, highly pathogenic avian influenza virus. †The same brand of raw cat food products made of raw meat from ducks slaughtered on the same day but on different manufacturing dates were all positive, but the same brand of raw food products made from raw chicken meat was negative (data not shown). Moreover, all kinds of cat food made from raw meat that were recalled nationwide from 10 manufacturers tested negative except for products in Table 2. ‡Manufacturer of avian influenza–positive raw cat food product fed to cats at shelter 2.
1These authors contributed equally to this article.