The messaging errors can be reversed quickly. The problem is that the managerial errors can’t. Sick People Across the U.S. Say They Are Being Denied the Coronavirus Test.

+ They’re off the Grand Princess, but passengers say they still haven’t been tested for the coronavirus.

+ As Americans speak of long waits, Senegal is testing people and getting results within 4 hours.

+ A Senegalese innovation lab is helping the UK develop a 10-minute coronavirus test kit.

+ An interview with the NYT’s resident expert on these matters, Donald McNeil, on how testing would look in a prepared country.

+ Time: What We Can Learn From Singapore, Taiwan and Hong Kong About Handling Coronavirus.

+ A sign of the times. Jack Ma to donate 500,000 test kits and 1 million masks to the US.