Washington: A new study suggests that changes in human behaviour may have the greatest influence on waves of influenza outbreak.Why flu arrives in multiple waves like the three waves of the deadliest influenza pandemic in history, known as the Spanish flu, which hit England and Wales in 1918, is the focus of a study by McMaster University researchers who discovered three contributing factors - the closing and opening of schools, temperature changes and - most importantly - changes in human behaviour."We found all three factors were important in 1918 but that behavioural responses had the largest effect," David Earn, an investigator with the Michael G. DeGroote Institute for Infectious Disease Research, and a professor in McMaster`s Department of Mathematics and Statistics, said.
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