Adults only catch flu around twice a decade, study finds

Adults only get flu twice a decade on average, scientists have found, suggesting that most of the coughs and colds that keep millions of people off work every year are down to other bugs. In childhood and adolescence, it's much more common, possibly because we mix more with other people," said Steven Riley of Imperial College London, who worked on the research. The team analyzed blood samples from volunteers in Southern China, looking at antibody levels against nine different flu strains that circulated from 1968 to 2009. They found that while children get flu on average every other year, flu infections became less frequent with age.



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