During the COVID-19 pandemic, there was a significant increase in multidrug-resistant Shigella sonnei infections, primarily among people experiencing homelessness in downtown Vancouver. The number of infections rose from 8.3 cases per year to 56.5 cases per year. Researchers identified a dominant strain resistant to most antibiotics but susceptible to ceftriaxone. The affected population shifted from men who have sex with men to people experiencing homelessness. This highlights the need for increased awareness, detection strategies, prevention measures, and the development of vaccines and new antibiotics to combat the rising infections due to multidrug-resistant Shigella strains.
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Resistant S . sonnei found spreading among people experiencing homelessness
