Cronobacter, which used to be called Enterobacter sakazakii, is a germ that can live in very dry places. Cronobacter has been found in dry foods, like powdered infant formula, powdered milk, herbal teas, and starches. It has also been found in sewer water. Cronobacter infections are often very serious for babies; they can die. Cronobacter infection can also be very serious for older people and people whose bodies have trouble fighting germs, like people with HIV, organ transplants, or cancer.