Fig. 1From: Seroprevalence of mumps before the introduction of mumps-containing vaccine in Lao PDR: results from a nationwide cross-sectional population-based surveySeroprevalence of anti-mumps IgG. A total of 2058 samples were tested using a commercially available ELISA kit and a positive determination was made according to the manufacturer’s instructions. Error bars represent 95% confidence intervalsBack to article page