News and articles of interest

Learn how CDC's influenza surveillance systems are used to monitor data and understand the current avian influenza situation.

A new project for the development and accessibility of experimental mRNA vaccines against influenza A has been launched.

Argentine biopharmaceutical company Sinergium Biotech will lead this vaccine development effort in the region.

H5N1 avian flu outbreaks in U.S. cattle tripled in just five weeks, reaching 92 confirmed cases.

No H5N1 human-to-human transmission has been recorded so far, but experts warn about the risk of virus mutations.

On March 25, 2024, a multistate outbreak of H5N1 avian influenza in dairy cows in the United States was reported for the first time.

First confirmed case of human infection caused by avian influenza A(H5N1) in Latin America, in July 2023.

Cambodia reported four new cases of human H5N1 avian influenza infections on February 12, 2024.

Current avian influenza outbreaks have devastated poultry, wildlife, and some mammal populations worldwide.

The United States has experienced an uptick in H5N1 avian influenza in commercial poultry operations.

Research has shown that mammals appear to be dead-end hosts for the H5N1 virus, but detection in cattle marks a milestone.

The highly contagious virus wreaked havoc in Sonoma County during the state of emergency declared by California.

The disease killed 4,000 birds on a farm in Chepén, Peru, and 23,000 more were culled to contain the outbreak.

Species mortality continues: 41% of the pelican population has died since the start of avian flu outbreaks in Peru.

H5N1 avian influenza is widespread among wild birds worldwide and has affected dairy cows and a dairy worker in the U.S.

Zoonoses are infectious diseases naturally transmissible from vertebrate animals to humans, representing a global public health challenge.

One Health highlights the interdependence between animal, human, and plant health, and the environment in which they coexist.

Avian influenza causes major losses in the poultry industry and affects wild birds worldwide. Official information from WOAH.