I agree, they are only doing tests mostly on the recent international traveller, the sick, old, dying, rich and famous. A city probably contains 3-10 times or more many carriers with no symptoms which would bring that rate down even more. Where I am from a child at a day care center in downtown was confirmed with covid 19.
34 people in the Northwest part of the city in a prayer group were also confirmed as having covid 19. A cashier at a large superstore in the Northeast part of the city was confirmed as having covid 19 and the store was shutdown March 21. They posted a letter they are disinfecting the store and would re-open April 8.
They only calculate the exponential growth and the doubling of the small percentage they test mostly the recent international traveller, the old, the sick and dying, then foolishly believe these are the only carriers.
If you have one penny and double it everyday at day 31 you would have almost $11 million dollars.
www.budgetsaresexy.com/penny-compounding-interest/
The average single cough may contain as many as two hundred million individual virus particles, one person infected that coughs into their hand and carrying on with normal errands, touching different surfaces, it is going to spread really quickly.
Cough or sneeze to the floor and the small wind created by opening a door can send a cascade of these particles, off the floor streaming upward and beyond landing everywhere. Walking can also make heavier droplets become airborne creating invisible viral clouds that we inhale or breathe.
www.livescience.com/3686-gross-science-cough-sneeze.html
I would say it is much faster than doubling everyday. Think about the cashier at that superstore, how much she is touching; money, produce, hands, credit and debit cards. Calculate the exponential doubling not only with the old, sick and dying, but also with the healthy who may show no symptoms.
If a large percentage of the recent international traveller, the old,sick and dying that are tested are carrying covid 19; it means a large percentage of the un-tested population are carrying it too.
To think otherwise would be foolish.
