Learn how CDC's systems that monitor influenza data are being used at the local, state, and national levels during the current avian influenza A(H5N1) situation.

A new project aiming to accelerate the development and accessibility of human avian influenza (H5N1) messenger RNA (mRNA) vaccine candidates for manufacturers in low- and middle-income countries.

The Argentinian manufacturer Sinergium Biotech will lead this effort leveraging the World Health Organization (WHO) and the Medicines Patent Pool (MPP) mRNA Technology Transfer Programme.

Outbreaks of H5N1 avian influenza in cattle in the United States, which have infected three farm workers, have tripled in just five weeks to 92 confirmed cases in animals in 12 states of that country, warns the World Health Organization (WHO).

To date, no human-to-human transmission of H5N1 has been recorded. But the concern is that more and more birds are infecting mammals and there are fears that the virus will evolve and develop the ability to infect humans.

On 25 March 2024, a multistate outbreak of highly pathogenic avian influenza A(H5N1) was reported for the first time in dairy cows. It was the first time these avian influenza viruses were detected in cattle.

July 2023 (PAHO/WHO). The Pan American Health Organization (PAHO) issued an alert on the unusual detection of outbreaks of avian influenza and the confirmation, for the first time, of a case of human infection caused by avian influenza A(H5N1) in Latin America.

Cambodia reported for the first time four new cases of human infections with HPAI avian influenza A H5N1 (highly pathogenic form of avian influenza) in 2024. The four infections occurred in three children, one of whom died, and an adult

The current outbreaks of avian influenza have wreaked havoc on animal populations, particularly poultry, wild birds and some mammals. In addition to posing a high risk to humans.

The US has been affected by Avian Influenza H5N1 in commercial poultry operations in Arkansas, Minnesota, Missouri, South Dakota, California, Iowa and Utah, with an increase seen so far this fall.

Fortunately, research to date has shown that mammals appear to be dead-end hosts, meaning they are unlikely to spread IAAP further where all poultry have already been quarantined.

The highly contagious virus has wreaked havoc in Sonoma County, where authorities have declared a state of emergency due to the severe economic blow to farmers, workers and their customers.

The disease killed 4,000 birds on a farm in Chepén. President of the Chamber of Commerce of La Libertad, he also ruled out avian flu zoonoses towards humans.

Species mortality does not decrease. We spoke with a specialist from the National Forestry and Wildlife Service (Serfor) to find out what the impact of this disease.

H5N1 avian influenza is widespread among wild birds around the world and is causing outbreaks in US poultry and dairy cows, with a recent human case in a US dairy worker.

Zoonoses are infectious diseases transmitted from animals to humans. Close interaction and increased movement have led to a greater spread of zoonoses.

Avian flu causes great losses in the poultry industry and affects wild birds, spread by migratory birds. There is also concern about sporadic cases in humans.

"One Health" highlights the interdependence between animal, human and plant health, linked to their ecosystems. This collaborative approach seeks to address global health risks.