Deciphering transmission dynamics and spillover of avian influenza viruses from avian species to swine populations globally.

"Declarations Conflict of interestThe authors declare that they have no conflicts of interest. Ethical approvalThe influenza virus sequences analysed in this study were downloaded from the Influenza Research Database (https://www.fludb.org/). This research is part of a research project which has obtained full approval from the Animal Research Ethics Committee (AREC) of the University of KwaZulu-Natal, Durban; Reference: AREC/041/019D. Additionally, the authors have permission in terms of section 20 of the Animal Diseases Act, 1984 (Act No. 35 of 1984) from the Department of Agriculture, Land Reform and Rural Development (DALRRD), South Africa; Reference: 12/11/1/5/4 (1425). Conflict of interest The authors declare that they have no conflicts of interest."

"Funding This research received no external funding."