> A comprehensive statistical analysis had earlier reported that the mean incubation period was between 10.3 and 13.2 years, but the tail of the distribution was long. Using these estimates, we calculated that the upper 0.4% quantile was 40 years, and even larger for those infected young (>50 years), very much in line with these new observations.
> we estimate that the mean duration of the incubation period is 16.7 years
https://www.thelancet.com/journals/lancet/article/PIIS0140-6...
> A comprehensive statistical analysis had earlier reported that the mean incubation period was between 10.3 and 13.2 years, but the tail of the distribution was long. Using these estimates, we calculated that the upper 0.4% quantile was 40 years, and even larger for those infected young (>50 years), very much in line with these new observations.