Bird Flu in Dairy Cows May Spread More Easily to Other Mammals ...

H5N1 bird flu in dairy cows may make it easier to transmit the virus to other mammals, according to an unedited study in Nature.

Features of H5N1 influenza viruses in dairy cows may facilitate ...

In March 2024, an outbreak of HPAI H5N1 was reported among U.S. dairy cattle which spread across herds and led to fatal infections among some ...

Current H5N1 Bird Flu Situation in Dairy Cows - CDC

This is thought to be the first instance of likely mammal to human spread of HPAI A(H5N1) virus. In May 2024, CDC began reporting additional, sporadic human ...

Bird flu has spread efficiently among mammals, study finds

Research into the bird flu outbreaks on dairy farms describes how efficiently the virus has spread between cows and from cows to other ...

Avian influenza virus type A (H5N1) in U.S. dairy cattle

The spread of the H5N1 virus within and among herds indicates that bovine-to-bovine spread occurs. Overall, animal movement is a recognized risk for disease ...

Testing transmission and infection of H5N1 from cows

Taken together, these results suggest that H5N1 in cows can infect other mammals, including humans, via raw milk. But they also suggest that ...

What's Happening With Dairy Cows and Bird Flu | Johns Hopkins

The H5N1 strain of avian influenza has been found in dairy cows, raising concerns among scientists about what the spillover could mean for ...

Avian Flu Has Infected Dairy Cows in More Than a Dozen States

Between May and July 2024, 13 confirmed H5N1 infections have occurred in humans, with all cases directly linked to dairy farms and poultry ...

HPAI in Livestock | Animal and Plant Health Inspection Service - USDA

USDA has been responding, in collaboration with State officials, to HPAI H5N1 detections in U.S. poultry since February 2022. After the first detection of HPAI ...

U.S. dairy cows are tip of iceberg as bird flu spreads in mammals ...

The dairy cow infections are simply the latest twist in a global pattern: since 2022, bird flu has been infecting a wide variety of mammals. “ ...

Bird flu in US cows: where will it end? - Nature

“Cattle are just one big birdfeeder,” Gray says, adding that birds can spread infections much further than cows can and are much less ...

Animal experiments shed more light on behavior of H5N1 from dairy ...

In scientific experiments designed to assess the threat from H5N1 avian flu in the milk of infected cows, researchers today reported that ...

Bird flu may be spreading in cows via milking and herd transport

The bird flu virus spreading through dairy cattle in the United States may be expanding its reach via milking equipment, the people doing the milking, or both.

Study confirms mammal-to-mammal avian flu spread

A new study provides evidence that a spillover of avian influenza from birds to dairy cattle across several US states has now led to mammal-to-mammal ...

CDC A(H5N1) Bird Flu Response Update November 18, 2024

... bird flu," in dairy cows and other animals in the United States ... influenza viruses to replicate or spread more easily. While NA-S247N ...

Why virologists are getting increasingly nervous about bird flu

Avian flu in dairy cows could stick around on US farms forever, and is raising the risk of outbreaks in mammals—including humans—around the ...

More states are finding bird flu in cattle. This is what scientists ... - NPR

Avian influenza is being detected in more dairy herds. Scientists are paying close attention to how the virus is changing and what that ...

What's happening with dairy cows and bird flu? - JHU Hub

What's going on with the avian flu? · Can we expect to see more cases in humans? · Were you surprised by this H5N1 outbreak? · Is the milk they ...

Highly Pathogenic Avian Influenza (Bird Flu) Outbreak in Cattle

We are still learning about how cows spread avian influenza to other cows. ... " The virus is found in high concentration in milk, so avian influenza might ...

Huge amounts of bird-flu virus found in raw milk of infected cows

New findings point to the milking process as a possible route of avian-influenza spread between cows — and from cow to human.