Reactivity (indicated as optical densities OD) of IgG4 to larval extract of E. multilocularis (EmAg) over time and difference of respective levels compared to baseline.

Vx = follow-up visit with V0 = baseline, N = number, M = mean, MD = median, SD = standard deviation; Min. = minimum, Max. = maximum, t = difference in units of standard error, df = degrees of freedom, p-value = significance level with * considered significant.