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Background We describe diverse clinical characteristics and course of confirmed mpox cases managed in a Nigerian tertiary health facility. Methods Clinical and epidemiologic data were analyzed, highlighting the unusual presentations of polymerase chain reaction (PCR)–confirmed mpox cases observed during the 2022 outbreak. Results Out of 17 suspected cases, 13 (76.4%) were PCR confirmed for mpox. The mean ± SD age for the participants was 28.62 ± 10.29 years (range, 2–55), of which 9 (64.3%) were male. Of the 13 PCR-confirmed cases, 5 (38.5%) had varicella zoster virus coinfection, 2 (15.4%) had HIV coinfection, and 1 (7.7%) had diabetes mellitus comorbidity. All patients experienced rash, with 6 (46.2%) having significant genital lesions and 1 (7.7%) having a severe perianal lesion. A lack of prodromal symptoms was reported in 3 (23.1%), and a prolonged prodrome (>1 week) occurred in 5 (38.5%). Skin lesions were polymorphic in 6 (46.2%), and solitary skin lesions occurred in 3 (23.1%), which persisted for >120 days in 7.7%. Conclusions Clinical recognition, diagnosis, and prevention remain a concern in resource-limited settings. Our findings highlight the need to further evaluate unusual skin lesions and to include mpox screening for genital skin lesions that are presumed to be sexually transmitted infections. Revision of clinical case definition and enhanced surveillance are key to early recognition and prevention of spread. [ABSTRACT FROM AUTHOR]

Background We describe clinicoepidemiologic characteristics of mpox-chickenpox coinfection in Nigeria. Methods A retrospective cohort analysis was performed of confirmed mpox cases in Nigeria from January 2022 to March 2023. Mpox and chickenpox were confirmed by real-time polymerase chain reaction (RT-PCR). Results Of 94 (60.0%) suspected cases, 56 had confirmed mpox, of whom 16 (28.6%) had chickenpox coinfection. The median age of confirmed mpox cases was 29 years (interquartile range, 20–37 years), 24 were men (60.7%), 6 (10.7%) were bisexual, and 5 (8.9%) died. Mpox-chickenpox–coinfected patients had more complications than mpox-monoinfected cases (56.3% vs 22.5%, P =.015). Conclusions The high frequency of mpox-chickenpox coinfection argues for accelerated access to mpox and chickenpox vaccines in Africa. [ABSTRACT FROM AUTHOR]