
United States Food and Drug Administration, in an online update on Thursday (April 25), said that fragments of the bird flu virus have been detected by federal regulatorsin around 20per centof retail milk samples afterthey were testedin a nationally representative study.
According to the agency, the samples with high chances of positive test results were collected from different parts of the country and belonged to virus-infected dairy herds.
TheFood and Drug Administration saidthattraces of the bird flu viruswere foundin 1 in 5samples of pasteurised milk.
Also Read:FDA traces fragments of bird flu virus in pasteurised milk, detailed report awaited
Till now, bird flu hasbeen foundin 33 herds across eight states: Idaho, Kansas, Michigan, New Mexico, North Carolina, South Dakota, Ohio and Texas.
The regulators have again confirmed that tillnowno evidence has emerged which proves that milk is dangerous for the consumption of the consumers.
They added that no presence oflive virus hasbeen foundin the milk on store shelves. Public health experts have also agreed with the assessment of the regulators.
However, traces of the virus insamples of milkfrom around the countryclearlyconfirmbird flu outbreak in dairy cows.
St. JudeChildren’sResearch Hospital virologist and influenza expert Richard Webby said, “It suggests that there is a whole lot of this virus out there."
Watch:Bird Flu Updates: Experts say 'outbreak could be serious'
The findings of the FDA emerged less than a month after the H5N1 strain of bird fluwas discoveredfor the first time in dairy cows in several states. Since then, the flu hasbeen detectedin herds in eight states.
The FDA has been working to investigate the outbreak with the US Department of Agriculture and the Centres for Disease Control and Prevention.
The testing method used iscalledPCR testingand looks for bits of genetic material. If the result ispositive,thatdoesn'tmean they have found a live, infectious virus.
(With inputs from agencies)