France, Germany and Italy are the latest countries to suspend the use of the AstraZeneca vaccine over blood clot concerns (though WHO says the concerns are unwarranted). Meanwhile, several European countries are undergoing new lockdowns as a third wave has emerged. (I know people are eager to be inside maskless with others, but it doesn’t make sense for Americans to let down our guard when we’re this close to beating the virus. We didn’t listen to the warning signals from Europe last year at this time. Have we learned anything since?)