Range is between 1-14 days for what percentage? With what level of confidence? There are several cases where the incubation period has been over 20 days. Maybe

Range is between 1-14 days for what percentage? With what level of confidence? There are several cases where the incubation period has been over 20 days. Maybe 90% of cases incubate for 14 days or less. Maybe 99% for less than 20. 14 days is not some magic limit.