The last Asian flu pandemic occurred in 1957. It is estimated that between 1 million people and 4 million people were killed by the virus.
Fast forward to October 2004 when an American lab sent out stored samples of the deadly strain of Asian flu to different labs all over the world. By some kind of administrative error some 3,700 samples of the 1957 Asian flu virus were sent out to labs around the world. The US scrambled to fix this terrible error but because the labs had expected to receive a much more normal sample of flu virus for testing they did not treat the sample with the care that the strain they received deserved. It is unlikely that all the samples were retrieved.
How could this have happened?
The College of American Pathologists, from time to time, sends out different viruses to labs worldwide. They do this so that these labs can test to see how well their vaccines are coping with the expected influenza strains. In order to make the testing accurate, the labs are not told what strain of virus they are going to receive. Only the CAP knows what they are sending out to the testing labs. The College of American Pathologists thought that they were...