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Low herd immunity might cause severe flu winter
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Low herd immunity might cause severe flu winter

by Steinar Brandslet, Norwegian University of Science and Technology Flu season can be tough, but effective hand washing can still prevent infection. This year, getting vaccinated against the flu is more important than ever. Credit: Shutterstock, NTB The flu season is upon us. Influenza usually kills approximately 1000 people every year in Norway. This is...