TUESDAY, April 21, 2015 (HealthDay News) — Bird flu has been detected on an Iowa farm with a flock of about 5 million chickens, bringing the total number of chickens and turkeys affected by the virus to nearly 8 million nationwide.
About 3.8 million laying hens on the farm will be killed, the Associated Press reported.
Experts at the U.S. Department of Agriculture stressed that no human cases of bird flu have occurred in the United States and the virus poses a low risk to people.
Another expert agreed.
“Although the bird flu can be quite virulent, the main virus in question — H5N2 — does not constitute an immediate threat to the safety of the public or the food supply in general,” said Dr. Robert Glatter, an emergency physician at Lenox Hill Hospital in New York City.
The Iowa farm newly hit by bird flu is Sunrise Farms, in Osceola County, the AP said. In a report from the Wall Street Journal, the Iowa Poultry Association said the farm supplies eggs for eating and processing, and that all eggs from the farm have been collected and quarantined.
“In very rare instances, the virus can jump to humans,” Glatter said, but “in this setting, H5N1 [not H5N2] would be the most concerning strain.”
He also noted that the majority of cases of avian flu in humans “are actually traced to persons who have had contact with poultry.”
“Overall, while it is possible for humans to contract flu from animals or birds, the risk is quite low,” Glatter said.
The bird flu outbreak began late last year and is the worst in years. In the past two weeks, there has been a sharp rise in the number of cases in Midwest states such as Iowa, Minnesota and Wisconsin, the WSJ reported.
Officials said they don’t know when the disease might stop spreading. In an effort to contain it, all birds in flocks where bird flu is confirmed will be destroyed.
It’s believed that the bird flu virus is carried by wild ducks and geese, and that the virus is spread through their droppings, which are unknowingly tracked into poultry farms by workers, the WSJ said.
More information
There’s more on avian flu at the U.S. Centers for Disease Control and Prevention.
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