In Focus:

Influenza might be spread simply by breathing, study finds

The flu virus might be spread not only by coughing and sneezing, but also simply by breathing, researchers say in a new report.

That may not sound surprising, but the common wisdom among flu experts has been that flu was not an airborne virus but only spread by fairly large droplets, from coughing or sneezing.

The new study found clear evidence that influenza patients breathe the virus out through their mouths and noses in tiny particles that can stay suspended in the air for minutes or hours.

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