30 Million Estimated number of microbial species. Of these, only 70 are known to cause disease. About 1,000 species normally live on the surface of human skin, according to a recent study by the National Human Genome Research Institute.
30 Million Estimated number of microbial species. Of these, only 70 are known to cause disease. About 1,000 species normally live on the surface of human skin, according to a recent study by the National Human Genome Research Institute.
Sign up for our weekly newsletter and unlock one more article for free.
View our Privacy Policy
Want more?
Keep reading for as low as $1.99!
Already a subscriber?
Find my Subscription
Save up to 40% off the cover price when you subscribe to Discover magazine.