Figure 1.

Age-specific observed seroprevalence with 95% confidence intervals, in 7 age classes (<20, [20–30], [30–40], [40–50], [50–60], [60–70], and 70 years and over) and estimated probability of seropositivity depending on age (line).

Fromont et al. BMC Infectious Diseases 2009 9:76   doi:10.1186/1471-2334-9-76
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