Epidemiology

Internal medicine

Phylogenetic tree

Salmonella

Bacteria

Biology

Gene

Outbreak

Virology

Shigella

Men who have sex with men

Syphilis

Shigella sonnei

Shigellosis

Clade

Human immunodeficiency virus (HIV)

Genetics

Medicine

The Lancet Infectious Diseases

We highlight the rapid dissemination of XDR ESBL-producing S sonnei in sexual networks of MSM. We recommend strengthening shigella testing where clinically indicated, antimicrobial-resistance surveillance, and integrated health promotion messaging among all MSM, including PrEP users, to reduce the burden of shigellosis.

Outbreak of sexually transmitted, extensively drug-resistant Shigella sonnei in the UK, 2021–22: a descriptive epidemiological study