HealthTop StoryUS

Bird Flu is spreading to more farm animals. Are Milk and Eggs safe?

A bird flu outbreak in U.S. dairy cows has grown to affect more than two dozen herds in eight states, just weeks after the nation’s largest egg producer found the virus in its chickens. Health officials stress that the risk to the public is low and that the U.S. food supply remains safe and stable.

Quick Read

  • Current Situation: Bird flu, specifically Type A H5N1, has been detected in over two dozen dairy herds across eight U.S. states, raising concerns about potential impacts on food production.
  • Health Risks: The U.S. Food and Drug Administration and other health agencies emphasize that the risk to human health remains low, with no evidence that the virus can be transmitted through properly pasteurized or cooked foods.
  • Industry Impact: Some states have imposed restrictions on dairy cattle imports from affected areas, though these measures have not significantly impacted milk production. Concerns increase as the virus has also been detected in poultry, affecting egg production.
  • Food Safety: Pasteurization processes are effective in killing viruses in milk, ensuring that grocery store milk remains safe. However, the safety of raw milk could be less certain if derived from herds exposed to the virus.
  • Transmission Concerns: So far, only two human cases of bird flu have been recorded in the U.S., both involving direct contact with infected animals, and not through food consumption.
  • Ongoing Monitoring: The situation is under continuous review by health and agricultural officials to manage risks and inform the public.

The Associated Press has the story:

Bird Flu is spreading to more farm animals. Are Milk and Eggs safe?


A bird flu outbreak in U.S. dairy cows has grown to affect more than two dozen herds in eight states, just weeks after the nation’s largest egg producer found the virus in its chickens.

Health officials stress that the risk to the public is low and that the U.S. food supply remains safe and stable.

FILE – Chickens walk in a fenced pasture at an organic farm in Iowa on Oct. 21, 2015. Another 1.2 million chickens will have to be slaughtered after bird flu was confirmed on an Iowa egg farm in the second massive case this week just days after nearly 1 million chickens had to be killed on a Minnesota egg farm. (AP Photo/Charlie Neibergall, File)

“At this time, there continues to be no concern that this circumstance poses a risk to consumer health, or that it affects the safety of the interstate commercial milk supply,” the U.S. Food and Drug Administration said in a statement.

Here’s what you need to know about bird flu and food:


As of Friday, the strain of bird flu that has killed millions of wild birds in recent years has been found in at least 26 dairy herds in eight U.S. states: Idaho, Kansas, Michigan, New Mexico, North Carolina, Ohio, Texas and South Dakota.

FILE – Dairy cattle feed at a farm on March 31, 2017, near Vado, N.M. The U.S. Department of Agriculture said Monday, March 25, 2024, that milk from dairy cows in Texas and Kansas has tested positive for bird flu. (AP Photo/Rodrigo Abd, File)

The virus, known as Type A H5N1, has been detected in a range of mammals over the last few years, but this is the first time it has been found in cattle, according to federal health and animal agencies. Genetic analysis of the virus does not show that it has changed to spread more easily in people, the U.S. Centers for Disease Control and Prevention said.


Agriculture officials in at least 17 states have restricted imports of dairy cattle from states where the virus has been detected, but, so far, government agencies say it’s had little effect on commercial milk production. Officials believe cows likely have been infected by exposure to wild birds, but said cow-to-cow spread “cannot be ruled out.”

Chickens stand in a holding pen at Ettamarie Peterson’s farmin Petaluma, Calif. on Thursday, Jan. 11, 2024. There are concerns that the flock of 50 hens could be infected with avian flu. A year after the bird flu led to record egg prices and widespread shortages, the disease known as highly pathogenic avian influenza is wreaking havoc in California, which escaped the earlier wave of outbreaks that that devastated poultry farms in the Midwest. (AP Photo/Terry Chea)

Farmers are testing cows that show symptoms of infection, including sharply reduced milk supply and lethargy. Animals that show signs or test positive for illness are being separated from other animals on the farms. The animals appear to recover within two weeks.

U.S. egg producers are watching the situation closely after bird flu was detected in chickens in Texas and Michigan. Millions of birds have been killed, but the FDA said the risk of affected eggs getting into the retail market or causing infections in humans is low because of federal inspections and other safeguards.


Scientists say there’s no evidence to suggest that people can contract the virus by consuming food that’s been pasteurized, or heat-treated — or properly cooked.

“It’s not a food safety concern,” said Lee-Ann Jaykus, an emeritus food microbiologist and virologist at North Carolina State University.

Whole milk is displayed for sale at a Whole Foods grocery store, Friday, Jan. 19, 2024, in New York. A typical basket of groceries now costs 20% more than in February 2021, just before inflation began to take off. (AP Photo/Peter K. Afriyie)

Two people in U.S. have been infected with bird flu to date. A Texas dairy worker who was in close contact with an infected cow recently developed a mild eye infection and has recovered. In 2022, a prison inmate in a work program caught it while killing infected birds at a Colorado poultry farm. His only symptom was fatigue, and he recovered.


Yes, according to food safety experts and government officials.

U.S. producers are barred from selling milk from sick cows and must divert and destroy it. In addition, milk sold across state lines is required to be pasteurized, or heat-treated using a process that kills bacteria and viruses, including influenza.

Shown are milk jugs at a grocery store in Roslyn, Pa., Tuesday, June 15, 2021. Wholesale prices, boosted by rising food costs, increased 0.8% in May, and are up by a record amount over the past year, another indication that inflation pressures are rising since the economy has begun to re-open following the pandemic lockdowns. (AP Photo/Matt Rourke)

“We firmly believe that pasteurization provides a safe milk supply,” Tracey Forfa, director of the FDA’s Center for Veterinary Medicine told a webinar audience this week.


The FDA and the CDC are less certain about unpasteurized, or raw, milk sold in many states, saying there’s limited information about the possible transmission of the H5N1 virus in such products.

So far, no herds linked to raw milk providers have reported cows infected with bird flu, but the agencies recommend that the industry not make or sell raw milk or raw milk cheese products made with milk from cows that show symptoms — or are exposed to infected cows.

Boxed milk products are shown in a grocery store, Tuesday, April 11, 2023, in Surfside, Fla. On Wednesday, the Labor Department reports on U.S. consumer prices for March. (AP Photo/Wilfredo Lee)

U.S. health officials have long warned against the risk of foodborne illness tied to raw milk, which the CDC said caused more than 200 outbreaks that sickened more than 2,600 people between 1998 and 2018.

Still, raw milk proponents like Mark McAfee, owner of Raw Farm USA in Fresno, Calif., said the outbreak of H5N1 in commercial cows appears to have spurred higher sales of the products, despite federal warnings.


Only dairy cows, not beef cattle, have been infected or shown signs of illness to date, agriculture officials said.

The largest egg producer in the U.S. temporarily halted operations on April 2 after finding bird flu in its chickens. Cal-Maine Foods culled about 1.6 million laying hens and another 337,000 pullets, or young hens, after the detection.

The company said there was no risk to eggs in the market and that no eggs had been recalled.

FILE – Eggs are cleaned and disinfected at the Sunrise Farms processing plant in Petaluma, Calif., on Thursday, Jan. 11, 2024, which had seen an outbreak of avian flu. Egg prices are at near-historic highs in many parts of the world as the spring holidays approach, reflecting a market scrambled by disease, high demand and growing costs for farmers. (AP Photo/Terry Chea)

Eggs that are handled properly and cooked thoroughly are safe to eat, said Barbara Kowalcyk, director of the Center for Food Safety and Nutrition Security at George Washington University.

“A lot of people like runny eggs. Personally, if I eat an egg, it’s very well cooked,” she said.

Still, Kowalcyk and others cautioned that the situation could change.

“This is an emerging issue and clearly this pathogen is evolving and there’s a lot that we don’t know,” she said. “I do think that everybody is trying to figure it out as quickly as possible.”

For more U.S. news

Previous Article
Univ. of Michigan new policy on protests fears some that it could quell free speech bids
Next Article
Israel deployed a multilayered air-defense system. It faces big test with Iranian drone strike

How useful was this article?

Click on a star to rate it!

Average rating 0 / 5. Vote count: 0

No votes so far! Be the first to rate this article.

Latest News