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Anti-CAV antibody seroprevalence in CAF. (A) Age-dependent seroprevalence in broiler flocks () and layer flocks (□) in CAF and in broiler (Δ) or pullet and layer (x) flocks in Nigeria (from Owoade et al.[27]). (B) Relation between seroprevalence and virus DNA prevalence in chicken flocks in CAF.
