A unique lineage of swine influenza viruses are found to be a new threat to human beings with pandemic potential. Researchers have found that H1N1 swine flue viruses or SIV and Eurasian avian-like H1N1 or EAH1N1 SIVs that usually found in pigs are now virulent to attack human beings. The long term evolution have helped the strains to infect human immunity systam and that can possibly cause epidemi