May 11 briefing: Gov. J.B. Pritzker delivered his daily coronavirus press briefing from home as he and his employees remain in self-isolation after a senior staffer tested positive for coronavirus while asymptomatic last week.
Illinois Gov. J.B. Pritzker on Monday mentioned a term that some may have never heard before — R0, pronounced “R-naught” — but one that’s remarkably important in understanding the science-driven guidance state officials have sought in their plans to reopen Illinois. Simply put, “R-naught” measures new infections that result from a single case of a virus A value above one…