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Learn and update your knowledge about avian influenza.

How are the CDC monitoring human influenza data to better understand the situation of avian influenza?

How are the CDC monitoring human influenza data to better understand the situation of avian influenza?

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.

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A new initiative will study the development of an experimental mRNA vaccine against infection by the influenza A (H5N1).

A new initiative will study the development of an experimental mRNA vaccine against infection by the influenza A (H5N1).

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.

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A new initiative is launched to advance the development of mRNA vaccines against human avian influenza (H5N1)

A new initiative is launched to advance the development of mRNA vaccines against human avian influenza (H5N1)

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.

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Avian flu: WHO raises alarm over outbreaks in cattle, cases have tripled in a month

Avian flu: WHO raises alarm over outbreaks in cattle, cases have tripled in a month

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).

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Experts fear that avian flu may start spreading from person to person

Experts fear that avian flu may start spreading from person to person

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.

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Current situation of avian influenza H5N1 in dairy cows

Current situation of avian influenza H5N1 in dairy cows

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.

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Questions and answers about avian influenza A (H5N1)

Questions and answers about avian influenza A (H5N1)

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.

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First cases of human infections with Avian influenza virus.

First cases of human infections with Avian influenza virus.

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

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Current outbreaks of avian influenza in animals pose a risk to humans

Current outbreaks of avian influenza in animals pose a risk to humans

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.

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The US exhibits a rebound in H5N1 Avian Influenza cases

The US exhibits a rebound in H5N1 Avian Influenza cases

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.

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The United States detects avian flu in cattle for the first time

The United States detects avian flu in cattle for the first time

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.

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A new outbreak of avian flu impacts California's

A new outbreak of avian flu impacts California's "egg basket."

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.

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More than 23 thousand birds were sacrificed to prevent the spread

More than 23 thousand birds were sacrificed to prevent the spread

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.

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41% of the pelican population has died since the start of the bird flu.

41% of the pelican population has died since the start of the bird flu.

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.

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H5N1 avian influenza: summary of the current situation.

H5N1 avian influenza: summary of the current situation.

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.

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Zoonosis OPS/WHO response

Zoonosis OPS/WHO response

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

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Avian Influenza WOAH

Avian Influenza WOAH

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.

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One WOAH Health

One WOAH Health

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

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