MIT News: Study: To slow an epidemic, focus on handwashing
Updated: Jul 29, 2020
Improving the rate of handwashing at just 10 major airports could significantly slow the spread of a viral disease, researchers estimate.
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Published February 6, 2020.
Short Excerpt from MIT News:
“Seventy percent of the people who go to the toilet wash their hands afterwards,” Nicolaides says, about findings from a previous ASM study. “The other 30 percent don’t. And of those that do, only 50 percent do it right.” Others just rinse briefly in some water, rather than using soap and water and spending the recommended 15 to 20 seconds washing, he says. That figure, combined with estimates of exposure to the many potentially contaminated surfaces that people come into contact with in an airport, leads to the team’s estimate that about 20 percent of travelers in an airport have clean hands.
Improving handwashing at all of the world’s airports to triple that rate, so that 60 percent of travelers to have clean hands at any given time, would have the greatest impact, potentially slowing global disease spread by almost 70 percent, the researchers found. Deploying such measures at so many airports and reaching such a high level of compliance may be impractical, but the new study suggests that a significant reduction in disease spread could still be achieved by just picking the 10 most significant airports based on the initial location of a viral outbreak. Focusing handwashing messaging in those 10 airports could potentially slow the disease spread by as much as 37 percent, the researchers estimate.