JERUSALEM — Rabbi Chaim Kanievski issued a dramatic new ruling on Monday, calling on the heads of Talmud Torahs and schools to vaccinate children against coronavirus in their school systems. In a letter written in response to a query by educators, Rabbi Kanievski responded that “they should arrange for vaccinations to take place in the Talmud Torahs and children should be vaccinated.” Last month, Rabbi Chaim said that parents of children over the age of 5 should vaccinate them. This ruling was issued after the heads of the health system and the coronavirus project manager met with Rabbi Chaim and...