
The origin of the 1918 pandemic flu virus and its unusual severity, which resulted in a death toll of approximately 50 million people may have been solved in a study led by Michael Worobey at the University of Arizona in Tucson.
Worobey's paper on the flu, to be published in the early edition of the Proceedings of the National Academy of Sciences (PNAS) on April 28, not only sheds light on the devastating 1918 pandemic, but also suggests that the types of flu viruses to which people were exposed during childhood may predict how susceptible they are to future strains, which could inform vaccination strategies and pandemic prevention and preparedness.
"Ever since the great flu pandemic of 1918, it has been a mystery where that virus came from and why it was so severe, and in particular, why it killed young adults in the prime of life," said Worobey, a professor in the UA Department of Ecology and Evolutionary Biology. "It has been a huge question what the ingredients for that calamity were, and whether we should expect the same thing to happen tomorrow, or whether there was something special about that situation."
Source: Eurekalert
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