Fatality is a binary measure for which early numbers are easy to get. You catch the illness and you either survive or don't, with some fatalities at a delay. (D

Fatality is a binary measure for which early numbers are easy to get. You catch the illness and you either survive or don't, with some fatalities at a delay. (Diamond Princess did have some people that took months to perish afterwards) Other effects require long periods of observation, and more granular measures of degree of impact. That research is ongoing now, and you seem to be deliberately wanting to misunderstand the nature of the problem.