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The outbreak subsided after seven\u00a0months with 7580 suspected cases. We performed a serological survey (n\u2009=\u2009431) in Praia, the capital city, 3\u00a0months after transmission ceased. Serum samples were screened for arbovirus antibodies using ELISA techniques and revealed seroconverted individuals with Zika (10.9%), dengue (1\u20134) (12.5%), yellow fever (0.2%) and chikungunya (2.6%) infections. Zika seropositivity was predominantly observed amongst females (70%). Using a logistic model, risk factors for increased odds of Zika seropositivity included age, self-reported Zika infection, and dengue seropositivity. Serological data from\u00a0Zika and dengue virus assays were strongly correlated (Spearman\u2019s r<jats:sub>s<\/jats:sub>\u2009=\u20090.80), which reduced when using a double antigen binding ELISA (Spearman\u2019s r<jats:sub>s<\/jats:sub>\u2009=\u20090.54). 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