WHO Publishes List of 12 Deadliest Bacteria

The World Health Organization published its first-ever list of bacteria that they say are in desperate need of new antibiotics because they pose the greatest threat to human health.

The WHO says the list highlights the threat of bacteria that are resistant to multiple antibiotics and have built-in abilities to resist drugs. The list consists of three tiers -- from medium to high then to critical.

The WHO says they hope the list will promote research and development of new antibiotics.