Shalva Zalfreund, the kindergarten teacher who died Friday of coronavirus, had warned of the dangers of reopening early childhood education centers before her death. In a letter to someone who seems to work with the Clalit health fund, Zalfreund wrote, "In recent days, I received several phone calls from official sources, according to which it seems that I was infected in the kindergarten." "You certainly saw that I wrote in the past that I am asking for people to take responsibility, since I am in a high-risk group. And now - it's happened....It was to protect people such as myself...