Weill Cornell Medical College researchers released a study Thursday mapping the microbes found on the city's 24 subway lines and at all 466 open stations. Here's what they found:
To start, nearly half of the specimens collected — 48.3% — "did not match to any known organism."
But some of the bacteria collected were very well known, and included traces of the bubonic plague, anthrax, and MRSA.
Plenty of human DNA was found, and it largely mimics the racial and ethnic makeup of the surrounding neighborhood, the study found.
Most of the microbes from humans come from the skin — but many others come from the gastrointestinal and genitals.
Tom Namako is the deputy news director for BuzzFeed News and is based in New York.
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