I said there were issues with the early testing
"Delays started with a manufacturing flaw in the CDC’s original PCR test, which caused components that detect one of the three targeted viral genes to not work properly, the health agency says."
Having to go back to the drawing board to develop/manufacture tests that work obviously takes a little time
https://www.sciencenews.org/article/coronavirus-testing-diagnostic-covid19-united-statesEdited by Sal at 15:09:06 on 03/13/20