Before schools reopen, all staff should be vaccinated and completely protected against the coronavirus, trade unions and experts said in a joint statement. Workers in the education sector and many health-care professionals have raised “concerns and fears” about a recent resolution which states that students and teachers must return to classrooms by April 19, only a few days after teachers receive their first jabs, the statement said. It added that Chief Medical Officer Cecília Müller had regularly warned people not to feel protected from the virus after their first shot because it might take two or three weeks for the immune system to produce an adequate response. The trade unions and experts asked the government to observe these guidelines and ensure safe working conditions for all staff in the education system.