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1 .This is Scientific American 60-Second Science. I'm Sophie Bushwick. Got a minute?
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2 .Whooping cough, also called pertussis, can cause fatal respiratory failure in infants.
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3 .Now a study finds that one way to help protect the very young from this disease is vaccination, of kids a few years older than the babies.
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4 .The recent resurgence of pertussis led to a 2006 recommendation by the Centers for Disease Control and Prevention that adolescents be vaccinated.
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5 .The current study used pre-2006 data to estimate the number of babies who would have been hospitalized for pertussis had the vaccination effort not occurred.
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6 .Researchers found that the actual number of infants hospitalized in the years since the adolescent immunization program started was far lower than what would have been forecast.
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7 .For example, in 2011 adolescent vaccination led to a greater than 70 percent reduction in infant hospital cases.
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8 .Credit goes to so-called herd immunity: protected people means more dead ends for an infection trying to spread.
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9 .The work is in the journal Pediatrics.
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10 .Sadly, a thousand babies still got sick.
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11 .Vaccinations for people of all ages will help smother pertussis in the crib.
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12 .Thanks for the minute, for Scientific American 60-Second Science. I'm Sophie Bushwick.
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