The World Health Organization (WHO) published a Rapid Risk Assessment on the recent influenza A(H5N1) clade 2.3.4.4b viruses that arose in 2020. For more information, see the WHO website.

The World Health Organization (WHO) published a Rapid Risk Assessment on the recent influenza A(H5N1) clade 2.3.4.4b viruses that arose in 2020. For more information, see the WHO website.