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Mapping the evolution of E coli s main virul

In a new study, published today (15 June) in Nature Communications, a multi-centre team led by the Wellcome Sanger Institute, the University of Oslo, Imperial College London and UCL, has mapped for the first time the evolutionary timeline and population distribution of Escherichia coli’s protective outer capsule, which is responsible for the bacterium’s virulence. The study also shows how targeting the bacterium’s protective layer can help treat extraintestinal infections.

Full evolutionary journey of hospital superbug mapped for the first time

 E-Mail Modern hospitals and antibiotic treatment alone did not create all the antibiotic resistant strains of bacteria we see today. Instead, selection pressures from before widespread use of antibiotics influenced some of them to develop, new research has discovered. By using analytical and sequencing technology that has only been developed in recent years, scientists from Wellcome Sanger Institute, University of Oslo and University of Cambridge have created an evolutionary timeline of the bacterium, Enterococcus faecalis, which is a common bacterium that can cause antibiotic resistant infections in hospitals. The results, published today (9th March 2021) in Nature Communications show that this bacterium has the ability to adapt very quickly to selection pressures, such as the use of chemicals in farming as well as the development of new medications, which have caused different strains of the same bacterium to be found in many places worldwide, from the majority of people s

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