Superbugs jumping frequently between humans and animals

phys.org | 9/10/2018 | Staff
urbanpatrioturbanpatriot (Posted by) Level 4
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MRSA staphylococcus is an example of a superbug. These bacterial strains are resistant to most antibiotics and can cause serious infections.

"In the case of MRSA, these bacteria have also spread in hospitals almost worldwide," says Jukka Corander, professor at the University of Helsinki, a member of an international research team that mapped several millennia of the evolution of the staphylococcus. In their extensive study, the researchers sequenced whole genomes of superbugs from a large sample from animals and humans, and were able to study the DNA changes that helped the bacteria adapt to new host organisms over thousands of years.

Analysis - Humans - Hosts - Superbugs - DNA

Based on genome analysis, humans were most probably the original hosts to these superbugs, and judging from DNA changes, the ability to colonise domestic animals appeared in an age when the first animals were domesticated to become livestock on farms.

In the study, published recently in Nature Ecology & Evolution, the team...
(Excerpt) Read more at: phys.org
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