PT - JOURNAL ARTICLE AU - Golden, John AU - Harryman, Lindsey AU - Crofts, Megan AU - Muir, Peter AU - Donati, Matthew AU - Gillett, Sophie AU - Irish, Charles TI - Case of apparent mpox reinfection AID - 10.1136/sextrans-2022-055736 DP - 2023 Jun 01 TA - Sexually Transmitted Infections PG - 283--284 VI - 99 IP - 4 4099 - http://sti.bmj.com/content/99/4/283.short 4100 - http://sti.bmj.com/content/99/4/283.full SO - Sex Transm Infect2023 Jun 01; 99 AB - We present an apparent second episode of mpox (monkeypox) genital ulcerative disease in a non-immunosuppressed MSM (man who has sex with men) patient who had completely recovered from a primary mpox infection 4 months previously. The patient had also received a complete two-dose course of smallpox vaccination between the two presentations. This case highlights the importance of continuing to include mpox in the differential diagnoses for individuals presenting with genital or mucosal ulceration, regardless of assumed immunity derived from prior infection or vaccination.