NHS website suggests that fever etc will be weeks afterwards. Both 1 year old and 3 year old were crying and unwell in the evening (1 year old was screaming and screaming). Both miserable and ill today. 3 year old has a measles-like rash covering his front and back from neck to groin. It blanches when pushed and no high fever so not meningitis and must be from the vacc. But so soon?