It has happened for the first time in the US that avian flu outbreak has taken place across many states simultaneously. As per data, the outbreak has killed poultry in 10 states.

In the past five months, two strains of bird flu have been detected resulting into the killing of hundreds of thousands of birds. Earlier, outbreaks related to bird flu in US poultry have taken place a few times. But they were limited to a single state and small numbers of farms.

This time, the outbreak is of unprecedented level. But Agriculture officials and poultry farms are not losing hope and think that measures like quarantine and culling will stop the outbreak. It is vital to protect the state's $800 million turkey industry.

Some avian researchers think that the new viruses may not easily go from the nation. The strains of bird flu virus currently circulating in the United States have genes from viruses that were found in Europe and Asia.

Experts found it quite surprising. "With the exception of Siberia and Alaska where they can have a little bit of exchange of genetic material of their viruses", affirmed David Halvorson, an avian influenza researcher.

As per Halvorson, the new flu viruses were introduced to North America near the Bering Sea in the northern part of the Pacific Ocean between North America and Asia. He also thinks that it will be hard to remove them.

It is difficult to get rid of them as the wild birds might be infected with flu but they would appear ill. In Minnesota, none of the waterfowl fecal samples have been tested positive for the flu strain. But they have been in other states. Bio- security practices will be scrutinized and is expected that things will become better.