In 2020, there were two big questions: What are my chances of contracting Covid? If I get infected, what are my chances of getting sick, or dying? “Today those two have been replaced by one: Are you vaccinated?” Dr. Bob Wachter told local Jewish communal professionals and clergy on Wednesday in a Zoominar hosted by the S.F.-based Jewish Community Federation. That pretty much covers it, he said. “The vaccines are so unbelievably good and unbelievably safe, once you are fully vaccinated it becomes the determinant of both your risk of catching Covid, and how sick you might become.” The session, which featured a panel discussion and an update by Wachter, a nationally renowned Covid expert and chair of the Department of Medicine at UCSF, was aimed at helping leaders at Bay Area Jewish organizations determine how and when to reopen their institutions for in-person activities.