2020–21 H5N8 outbreak

In 2020 and 2021, an ongoing outbreak of Avian influenza subtype H5N8 has been happening in poultry farms and in wild bird populations in several countries and continents. It has caused the cullings of millions of birds to prevent a pandemic similar to that of the H5N1 outbreak in 2008. 
The first case of human transmission was reported by Russian authorities in February 2021, as several poultry farm workers tested positive for the virus.