Jimmy Fallon was back in 30 Rock studios for Monday night’s episode of NBC’s “The Tonight Show” after nearly four months away due to the coronavirus pandemic. New York Gov.

The federal response was chaotic. Even so, the state’s and city’s own initial efforts failed to keep pace with the outbreak, The Times found.

The initial coronavirus outbreaks on the East and West Coasts emerged at roughly the same time. But the danger was communicated very differently.

Even small differences in timing would have prevented the worst exponential growth, which by April had subsumed New York City, New Orleans and other major cities, researchers found.

CNN's Drew Griffin reports.