Until the end of next week, most people ill, or even dying now since it progresses more rapidly in those most susceptible, could have had it for several weeks and only started showing symptoms a week ago. Restrictions were only in some areas at first, not nation wide. No telling when and where those now very ill were exposed.
When the victims were exposed isn't being reported much. When they die is.
The median number of days for the incubation period is 5.1 days.
"New study on COVID-19 estimates 5.1 days for incubation period" - see https://medicalxpress.com/news/2020-03-covid-days-incubation-period.html
What other virus takes WEEKS to incubate enough to show symptoms? yikes.