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High-speed video imaging colored to reveal the two main components of a sneeze show a shower of larger droplets, green, whose trajectories can extend up to two meters from the person sneezing, yellow, and a cloud, red, made of a mixture of smaller droplets suspended in moist, warm gas. Pathogen-bearing droplets can be suspended in the air for not just seconds, but minutes, and can travel up to 27 feet.

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