Europe reports decline in bird flu outbreaks as wild birds develop immunity

European Center for Disease Prevention and Control (economic development center) and the European Food Safety Authority (European Food Safety Authority) published a report on the incidence of avian influenza, which emphasized that between December 2, 2023 and March 15, 2024, an outbreak of highly pathogenic avian influenza was reported (highly pathogenic avian influenza) A(H5) in 227 Poultry and 414 wild species in 26 European countries.

“The total number of highly pathogenic avian influenza viruses detected in birds, although still widespread, is significantly lower compared to previous years, likely due to, among other reasons, some degree of Immunity of previously affected wild birds

which results in less environmental contamination and a different composition of circulating A(H5N1) genotypes,” they note.

Most highly pathogenic avian influenza outbreaks reported in poultry are First outbreak since wild birds introduced virus. Outside Europe, most poultry outbreaks remain concentrated in North America, and the spread of A(H5) to more naive wild bird populations on the Antarctic continent is of particular concern.

It has been reported that in mammals first Virus AH5N5) exist Europewhile a group children inside USA Represents the first natural infection with A(H5N1) in ruminants.

Since the last report to March 12, 2024, Cambodia reports five cases of infection due to bird flu Humanity A (H5N1), including 1 death, 3 of which were attributed to clade 2.3.2.1c viruses.

In itself, China reports two cases of human infectionThis includes 1 death case of avian influenza A(H5N6), 4 cases of human infection with avian influenza A(H9N2), and 1 death case of mixed infection of seasonal avian influenza A(H3N2) and avian influenza A(H10N5).The last case is First recorded human infection with avian influenza arrive(H10N5).

“Human infection with avian influenza remains rare, and no sustained human-to-human infections have been observed.” He Risk of contracting avian influenza virus

H5 of clade 2.3.4.4b currently prevalent in Europe still low For the general public in the European Union and European Economic Area. The risk of infection remains low to moderate for those with occupational or other exposure to infected animals,” they concluded.