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Message: <blockquote data-quote="Strongbow" data-source="post: 3781584" data-attributes="member: 617">Good point, just saw this :"Traces of the same virus have been found in other flu viruses," said Dr Benito Almirante, head of infectious diseases at the Vall d'Hebron hospital in Barcelona. "The Spanish flu continued to appear, mutating and acquiring genetic material from other viruses."For example, the 2009 flu had genetic elements from earlier viruses, so older individuals were better protected than the young, he said.This also occurred with the Spanish flu, with those over the age of 30 having better survival rates, said Laura Lara Martínez. It is speculated this is because the older generation lived with the so-called Russian flu in 1889 and 1890.</blockquote>