The case is concerning as pigs can become infected with both bird and human viruses at the same time, which can give rise to mutated strains that can more easily infect humans.
Mexican drug cartels are turning thousands of Americans into fentanyl mules, deploying a torrent of couriers who can easily cross back and forth into their own country.
Bird flu is a disease caused by a virus that infects birds and sometimes other animals, such as foxes, seals and otters. The major strain - circulating among wild birds worldwide - is a type of the virus known as H5N1. It emerged in China in the late 1990s. – BBC
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