Figure 2. Predicted seroprevalences of maternal enterovirus 71 (EV71) neutralizing antibodies (antibody titer >8) in infants <6 months of age, Taiwan. Predictions are based on assumptions that 1) the seroprevalence in neonates is 50%, 2) the geometric mean titer (SD after natural logarithm transformation) in the seropositive neonates is 22 (0.91), and 3) the half-life of maternal EV71 neutralizing antibodies in young infants is 42 days.
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