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1 .This is Scientific American 60-Second Health. I'm Cynthia Graber. Got a minute?
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2 ."When you have to sneeze or cough, do it into the bend of your arm."
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3 ."Sneeze into your arm with Elmo. Ah-choo!"
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4 .Gordon and Elmo from Sesame Street are right.
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5 .And MIT researchers recently found that viruses can travel much further than we thought.
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6 .Which shows how important it is to block coughs and sneezes.
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7 .The researchers used high-speed imaging of folks coughing and sneezing, along with simulations and mathematical models.
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8 .The new research shows that multiple drops travel in a cloud.
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9 .And the cloud's turbulence pulls in surrounding air, which allows the goopy assemblage to maintain buoyancy and move farther.
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10 .Heavier particles drop out first, but about five times further out than had been previously predicted.
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11 .And the small ones swirl around and can be carried 200 times past previously predicted distances.
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12 .The research is in the Journal of Fluid Mechanics.
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13 .Longer flight distances means coughs and sneezes can often reach ventilation systems.
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14 .The researchers thus encourage hospital and airplane engineers to consider designs that block droplet flight and thus keep everyone else from catching your cold.
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15 .Thanks for the minute, for Scientific American 60-Second Health. I'm Cynthia Graber.
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