German Chancellor Angela Merkel arrives for a news conference after a virtual meeting with federal state governors at the chancellery in Berlin, on March 30.

German Chancellor Angela Merkel arrives for a news conference after a virtual meeting with federal state governors at the chancellery in Berlin, Germany, Tuesday, March 30, 2021. German health officials agreed Tuesday to restrict the use of AstraZeneca’s coronavirus vaccine in people under 60 amid fresh concern over unusual blood clots reported from those who received the shots. (AP Photo/Markus Schreiber, pool)