Objective: The objective of this study was to determine the proportion of the Anambra State population that had been infected by the SARS-CoV-2 virus and developed antibodies before the second wave.
Methods: The WHO-recommended health facility-based cross-sectional approach was adapted for this survey. Between 8 and 15 December 2020, 3142 participants across the 21 local government areas (LGAs) of the State, aged one year and over, attending randomly selected health facilities, were recruited.