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PV2 assay performance by participating pilot testing laboratory and reference viruses tested. Each dot represents a single virus tested against the PV2 assay. Colors indicate the participating laboratory: Centers for Disease Control and Prevention, United States (red; n = 200), Enterovirus Research Centre, India (blue; n = 149), and National Institute for Communicable Diseases (NICD), South Africa (green; n = 40).
