The outbreak of Shigella flexneri sickened 202 people in Albuquerque and 16 non-human primates at a local zoo.
A review and meta-analysis finds that an estimated 1 in 10 children in Ethiopia are infected with Salmonella or Shigella at any given time.
The strain of XDR Shigella sonnei, found in 3 men, is distinct from other globally circulating strains.
Researchers also observed an increase in Shigella infections among people experiencing homelessness.
Researchers estimate vaccines for enteric pathogens could prevent up to 8 to 12 courses of antibiotics per 100 vaccinated children per year in low-resource countries.
Studies conducted in 29 African countries showed the overall pooled prevalence of Shigella bacteria was 5.9%, with concerning levels of antibiotic resistance.
With the pipeline for new antibiotics weak and underfunded, vaccines are seen as a potential tool for preventing the infections that drive antibiotic use and resistance.
The strain of Shigella sonnei is non-susceptible to several classes of antibiotics, and health officials say it's likely to spread.
Montana's H1N2v case was reported in a patient who had attended an agricultural fair.
Of 300 cases recorded since April, 106 have been in the US, with the rest in Europe.
