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Flu season is coming. If you live in a large city, it may stretch longer than elsewhere, study says

The length of the flu season may vary depending on where you live, with large cities enduring longer periods of transmission and smaller cities experiencing shorter, but more explosive, spread, a new study suggests.

The study doesn’t assert that one’s risk of contracting influenza varies depending on the size of any given community. Rather, it argues that in less populous places, flu needs the right atmospheric conditions to spread effectively.

In large cities, those conditions don’t matter quite as much.