News & Perspective

Jul 23, 2019

Jul 23, 2019
MRSA bacteria

Reports profile MCR gene in South America, first detection in Uruguay

Brazil, Bolivia, and Argentina had the most MCR-positive isolates, a review finds.

Jun 14, 2019

Jun 14, 2019
Salmonella colonies in petrie dish

Colistin-resistance gene MCR-3.1 makes US appearance

The sample was from 2014, so the discovery has implications for the US spread of colistin resistance.

Sep 11, 2018

Sep 11, 2018
Endoscopy

Report ties 2 US cases of MCR-1 to problematic GI scope

The two patients shared exposure to a duodenoscope used in endoscopy.

May 14, 2018

May 14, 2018
Free-range chickens

Chinese scientists find 2 MCR genes on same plasmid

Similar plasmids were found in a hospitalized patient and in hospital sewage.

Mar 05, 2018

Mar 05, 2018
Sepsis or bacteremia

Australian report shows rise in resistant E coli bacteremia

Fluoroquinolone resistance in hospital-onset E coli bacteremia rose markedly.

Mar 02, 2018

Mar 02, 2018
Drug-resistant Shigella

MCR-1-carrying Shigella found in China

The authors say that finding MCR-1 in Shigella flexneri from pig feces suggests it could be circulating on Chinese farms and beyond.

Nov 20, 2017

Nov 20, 2017
DNA molecules

Study describes emergence, spread of MCR-1 gene

Isolates shared a background that took shape in 2006, when MCR-1 was first mobilized.

Sep 29, 2017

Sep 29, 2017
E coli on lettuce

Study finds MCR-1 is widespread in Chinese ecosystem

Transmission chain mapping points to prolonged colistin use in livestock and poultry.

Aug 03, 2017

Aug 03, 2017
Pipetting for DNA testing

More colistin-resistance genes identified in Europe

Scientists report the first detection of MCR-4, as well as MCR-3 in Denmark and Italy.

Jun 28, 2017

Jun 28, 2017
Pig closeup

New colistin resistance gene identified in China

The authors of the study say they're concerned the gene may already be widely disseminated.

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