The flu that is moving through humans appears to have a combination of genes from two normally separate sets of pigs, those from the Americas and from Eurasia, scientists say.
However, it is unknown how those pigs met, and there is not yet any genetic proof that this particular flu was ever in a pig.
And, despite current fears, some geneticists feel this strain may not be very deadly. As it circulates in humans, however, especially in the Southern Hemisphere winter, it could pick up dangerous human flu genes.
However, it is unknown how those pigs met, and there is not yet any genetic proof that this particular flu was ever in a pig.
And, despite current fears, some geneticists feel this strain may not be very deadly. As it circulates in humans, however, especially in the Southern Hemisphere winter, it could pick up dangerous human flu genes.
