EVEN ODDS In the human body, bacteria (such as Enterococcus bacteria, shown) were once thought to outnumber human cells by 10-to-1. New calculations show roughly equal numbers of each.
Cultura RM/Alamy Stock Photo
EVEN ODDS In the human body, bacteria (such as Enterococcus bacteria, shown) were once thought to outnumber human cells by 10-to-1. New calculations show roughly equal numbers of each.
Cultura RM/Alamy Stock Photo