On Thursday, nurses across the state held rallies to demand safe staffing levels and stronger workplace protections. It comes as more and more hospital staff across the state are testing positive for COVID-19. Reporter: Jackie Fortier, KPCC Starting this week, some people with weakened immune systems are eligible for a fourth dose of the coronavirus vaccine. There are an estimated seven million people in the U.S. who are immunocompromised, many of whom don’t produce the necessary antibodies to respond to an infection. That leaves them more susceptible to a virus like COVID-19. Guest: Dr. Lindsay Ryan, an internist at UC San Francisco who is herself immunocompromised Governor Gavin Newsom will not allow Robert Kennedy’s killer to be freed from prison, announcing Thursday that he has reversed a decision made by the state’s parole board last summer Reporter: Marisa Lagos, KQED     As the Omicron variant continues to surge throughout the country, here’s one bit of welcome news. New data based on Southern California patients shows they’re not getting as sick as those infected by the Delta strain.   Reporter: Tara Atrian, KCRW  Worker advocates are calling on Governor Gavin Newsom and the Legislature to again require that employers provide two weeks of COVID-19 paid sick leave. The last round expired in September. Reporter: Farida Jhabvala Romero