Highly pathogenic influenza H5: risks of a new pandemic strain developing

The review provides brief historical information on the highly pathogenic influenza A (H5) and presents data on massive outbreaks caused by this subtype. It includes historical background, data on outbreaks, and the formation of potentially pandemic viruses. The abstract also highlights the current state of the problem, such as the spread of H5 influenza in new territories and its ability to infect mammals and humans. The issues of vaccination for poultry and the challenges of implementing it globally are addressed. Furthermore, the risks of further spread of the virus and the emergence of pandemic strains are being discussed.