Is there a fda approved vaccine for the coronavirus disease

in an effort to stem the tide of refugees attempting to leave east berlin, the communist government of east germany begins building the berlin wall to divide east and west berlin. construction of the wall caused a short-term crisis in u.s.-soviet bloc relations, and the wall itself came to symbolize the cold war.

answer; by working independently, the states have a high likelihood of developing innovative solutions that can be employed in other states;