Scientists find single letter of genetic code that makes African Salmonella so dangerous — ScienceDaily

Scientists at the University of Liverpool have identified a single genetic change in Salmonella that is playing a key role in the devastating epidemic of bloodstream infections currently killing around 400,000 people each year in sub-Saharan Africa.

Invasive non-typhoidal Salmonellosis (iNTS) occurs when Salmonella bacteria, which normally cause gastrointestinal illness, enter the bloodstream and spread through the human body. The African iNTS epidemic is caused by a variant of Salmonella Typhimurium (ST313) that is resistant to antibiotics and generally affects individuals with immune systems weakened by malaria or HIV.

In a new study published in PNAS, a team of researchers led by Professor Jay Hinton at the University of Liverpool have identified a specific genetic change, or…

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