Just over one third of invasive Escherichia coli samples collected from patients with bloodstream infections across 26 countries were resistant to multiple classes of antibiotics, according to a global analysis published in Clinical Infectious Diseases.
Researchers examined 10,098 extraintestinal pathogenic E. coli isolates collected between 2011 and 2023 and classified 34% as multidrug resistant. Resistance rates varied dramatically by country, from 83.3% in India, 76.6% in Mexico, and 69.4% in China to 12.1% in the Netherlands, 11.6% in New Zealand, and 10.6% in Sweden. Countries with lower income levels generally had higher rates.