Serologic Evidence of Avian Influenza Virus Exposure in Livestock, Egypt, 2024–2026

Spillover of influenza A(H5N1) virus to cattle in the United States sparked global concern. We investigated whether endemic avian influenza viruses are potentially spilling over into domestic livestock in Egypt. We detected influenza H9N2 antibodies in 2.5% and H5N1 antibodies in 2.9%–4.5% of tested animals. Additional surveillance will elucidate host infection dynamics.