Since late March , H5N1 bird flu has spread to at least 33 dairy farm herd across eight state , allot to theCenters for Disease Control and Prevention(CDC ) . This was a surprising development since it was the first time the computer virus had been seen infect cows .

The virus has alsoinfected a exclusive farmworker , becoming the 2nd mortal ever in the US to be taint , who experience very mild symptom .

To better understand the problem , wellness authorities have been monitor the milk on shop shelf across the US . Last week , the World Organization ( WHO)had detected“very high concentration ” of the virus in bare-ass milk from septic animate being . That is not necessarily surprising asunpasteurized milkcan contain all variety of bacterium and viruses .

In a new ontogenesis , the FDA has revealed that sample of pasteurised milk in the US have examine positive for nonoperational leftover of the H5N1 virus . They did not reveal how many samples screen positive nor where the milk was sampled from . However , they did Department of State that pasteurization is potential to inactivate the computer virus and “ the process is not expected to polish off the presence of viral particles . ”

“ To engagement , we have see nothing that would exchange our judgement that the commercial-grade Milk River supply is dependable , ” the FDA said in astatementon Tuesday .

Along with testing , the FDA and the US Department of Agriculture are work out to hive off and destroy Milk River from sick cows .

Named after Gallic microbiologist Louis Pasteur , pasteurisation is the process of stir up up food for thought to eliminate pathogens and prolong its shelf life . well-nigh all Milk River ( 99 percentage ) produce and sold in the US come from farms that follow a nonindulgent pasteurization process , known as the Pasteurized Milk Ordinance .

As a heating plant - sensitive computer virus , H5N1should be demobilise by standard pasteurisation techniques – at least in theory . However , bird flu infecting cows is a novel problem , so there are presently no studies on the consequence of pasteurisation of H5N1 in bovine Milk River .

“ US administration partners have been working with calculated fastness on a wide range of studies looking at Milk River along all stages of production – on the farm , during processing , and on shelves – using well - established methodological analysis used previously to confirm pasteurization effectivity for known pathogen , ” the FDA said . “ This work is a top priority . ”