subways “teeming with life”

Researchers who swabbed and tested DNA from surfaces in New York City’s subway system identified 562 species of bacteria, including microbes from mozzarella, sausage, hummus, kimchi, sauerkraut, rats, mice, and lice. Geneticist Christopher E. Mason said the bacteria found were not sufficient to cause disease, but that his work revealed the subways to be “teeming with life,” like “a rain forest.”