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 16 January 2018

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News

New drug-resistant strain of Salmonella identified

Researchers from Taiwan report the identification of a new form of drug-resistant Salmonella bacterium in this week's issue of the Lancet.

News image

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Salmonella enterica serotype choleraesuis causes infections that can require antimicrobial treatment.

Multidrug-resistant strains have been identified, but the antimicrobial ceftriaxone has been effective against them so far.

However, Prof. Ou and colleagues have isolated a strain of Salmonella enterica serotype choleraesuis that is resistant to all antimicrobials commonly used to treat salmonellosis.

The isolated bacterium came from a 58-year-old man with sepsis who subsequently died.
Drug-resistance was due to changes in the genes of the bacteria.
Lancet

The team found that the drug-resistance was due to changes in the genes of the bacteria, including some in a genetic element that can potentially be transmitted between bacteria.

Although this strain was from only 1 patient, the public-health implications of multidrug-resistant Salmonella are serious.

"Constant surveillance is needed to prevent its further spread," warn the authors.

Lancet 2004; 363: 1285-6
16 April 2004

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