Skip to main content

Florida Dolphin Found Infected With Bird Flu

Medically reviewed by Carmen Pope, BPharm. Last updated on April 30, 2024.

By Ernie Mundell HealthDay Reporter

TUESDAY, April 30, 2024 -- H5N1 avian "bird" flu is making headlines this week, with new reports finding inactive virus detected in 1 in 5 U.S. milk samples.

That means the virus is infecting mammals such as dairy cows, and now researchers report it's turned up in a bottlenose dolphin in Florida.

“We still don’t know where the dolphin got the virus and more research needs to be done,” said study co-author Richard Webby. He directs the World Health Organization's Collaborating Center for Studies on the Ecology of Influenza in Animals and Birds at St. Jude’s.

Scientists are increasingly concerned that bird flu has moved from birds to numerous mammalian species, raising the chances that it might mutate to a strain that easily infects humans.

Right now, H5N1 is extremely rare in people, using coming only after prolonged contact with infected animals. But when people are infected with the virus, half of the time it is fatal.

That's why the emergence of H5N1 in yet another mammal sounds more alarm bells.

Reporting recently in the journal Communications Biology, Webby and colleagues say that the University of Florida (UF) Marine Animal Rescue team were alerted to a bottlenose dolphin in distress in Dixie County, Fla.

In a postmortem examination of the deceased dolphin, university scientists, along with experts at the Bronson Animal Disease Diagnostic Laboratory in Kissimmee, Fla., documented the presence of the avian flu virus in both the animal's lung and brain.

Other labs further confirmed the presence of the H5N1 virus. It's genome was compared to that of local birds, as well as viruses from Northeast seal populations. It's still unclear, however, where the dolphin contracted the infection.

“This investigation was an important step in understanding this virus” said study co-author Dr. Mike Walsh, an associate professor of aquatic animal health at UF.

Sources

  • University of Florida, news release, April 26, 2024

Disclaimer: Statistical data in medical articles provide general trends and do not pertain to individuals. Individual factors can vary greatly. Always seek personalized medical advice for individual healthcare decisions.

© 2024 HealthDay. All rights reserved.

Posted April 2024

Read this next

With Bird Flu a Threat, FDA Asks Some States to Curb Sales of Raw Milk

FRIDAY, June 7, 2024 -- The U.S. Food and Drug Administration on Thursday asked states to work harder to protect the public from the risks of raw milk as a bird flu outbreak...

Patient in Mexico Dies From First Known Human Infection of H5N2 Strain of Bird Flu

THURSDAY, June 6, 2024 -- A 59-year-old person in Mexico is the first human in the world known to be infected with the H5N2 strain of avian flu, and the patient died of...

U.S. Will Make Millions of Bird Flu Vaccines This Summer

MONDAY, June 3, 2024 -- As the H5N1 avian flu continues to spread among dairy cows in the United States, nearly 5 million doses of flu vaccine are now being prepared for possible...

More news resources

Subscribe to our newsletter

Whatever your topic of interest, subscribe to our newsletters to get the best of Drugs.com in your inbox.