Bacteria | featured news

The discovery of a strange bacteria that can use arsenic as one of its nutrients widens the scope for finding new forms of life on Earth and possibly beyond.

Bacteria that are able to survive every modern antibiotic are now cropping up in many U.S. hospitals and are spreading outside the USA.

An infectious-disease nightmare is unfolding: Bacteria that have been made resistant to nearly all antibiotics by an alarming new gene have sickened people in three states and are popping up all over the world, health officials reported Monday.