Through glass of woman in medical protection hanging sign on door saying Sorry we are closed due to COVID 19
Happy black man taking off medical face protection and welcoming clients back to cafe saying We are open
Through window of cheerful diverse women and man taking medical masks off and hanging We are open sign on cafeteria door
A closed door with a round window, through which a woman in a robe entering the lab can be seen. A sign with Russian words 'The Entrance to the clean zone' is hanging on the wall
Cheerful Asian woman taking medical mask off and hanging sign We are open on doorway of cafe after quarantine is over