COVID19 Sero-epidemiology and vaccine uptake in two Southern Nigerian clinics. - Ugwu CA; Odebode O; Ajayi IO; Olubunmi J; Ifeoluwa B; Adole JA; Akano K; Okolie J; Eromon P; Kio IK; Amadi J; Adebayo PF; et al. (PLOS global public health, 2026)