World Health Organisation has released the list of 12 most deadly superbugs. According to WHO report, these drug-resistant superbugs pose threat to humans. 

The WHO states that these superbugs are resistant to drugs because of overuse of antibiotics by humans. Britain's chief medical officer Sally Davies has compared the threat from the superbugs to terrorism.

The 12 deadly superbugs have been selected on the basis of their resistance to drugs, the number of deaths they caused, the frequency at which people get infected and the fact that knowledge about them needs to be further explored.

1. Acinetobacter baumannii 

Acinetobacter baumannii is an opportunistic pathogen in humans, and it affects the immune system directly. This superbug is resistant to carbapenem antibiotic. Carbapenems are used for treatment of infections which are caused by multi-drug resistant (MDR) bacteria.

2. Pseudomonas aeruginosa 

Pseudomonas aeruginosa is a pathogen which is associated with infections caused by toxins in the body. But these bacteria are also carbapenem-resistant due to excessive use of the drug in hospitals.

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