Health Officials Confirm U.S. COVID-19 Death From Early February

The CDC confirmed that COVID-19 deaths in California occurred earlier than previously thought, with the first known death on February 6th. Testing limitations at the time meant only those with travel history or specific symptoms were tested. Data suggests unrecognized cases existed as early as December due to a severe flu season.

What limitations were present in testing for COVID-19 at the time of the deaths?

What does the data suggest about the presence of COVID-19 cases in California prior to February?