Facebook Debuts Vaccine Pop-Up Windows To Stop The Spread Of MisinformationA new feature is rolling out on Facebook and Instagram to combat the spread of anti-vaccine misinformation.
Gov. Gavin Newsom Seeks Changes To Bill That Would Limit Vaccine ExemptionsGov. Gavin Newsom is seeking last-minute changes to one of the most controversial bills facing California lawmakers.
California Lawmakers Eye Bills On Vaccines, Guns, HousingCalifornia state lawmakers have just two weeks remaining in their session to sort through hundreds of bills, some addressing volatile topics such as vaccinating children and shootings by police.
Anti-Vaccine Activist Facing Battery Charge for Shoving State SenatorThe activist live-streamed himself pushing Senator Dr. Richard Pan on Sacramento street.
Vaccine Critic Cited After Pushing Sen. Richard Pan Near California State CapitolPolice have cited an anti-vaccine advocate for assaulting Senator Richard Pan in Sacramento in an incident all caught on video.
Sacramento-Area Doctors Accused Of Questionable Medical ExemptionsTwo Sacramento-area doctors are accused of "making easy money" by issuing vaccine exemptions. 
California Assembly Committee Backs Vaccine Exemption LawA California Assembly committee backed new rules for vaccination exemptions on Thursday following a raucous, hours-long hearing that came in the midst of a national measles outbreak and renewed scrutiny of immunization policies.
Hundreds Likely To Weigh In On California Vaccine MeasureThe hearing of the Assembly Health Committee is likely to draw those opposed to vaccines as well as white-coated medical professionals and students voicing support for the measure.
Whooping Cough Vaccine Becomes Less Effective Over Time, Study SaysThe modern vaccine for whooping cough becomes less effective as children age, a new study shows, highlighting the need for new vaccines to protect children from the highly contagious disease.
California Lawmakers Advance Tougher Vaccine RulesCalifornia lawmakers have advanced tougher rules for vaccinations even as opponents shouted "we will not comply" from the Senate gallery.
Opponents Spar Over California Vaccine Exemption BillHundreds of opponents of mandatory vaccines are in Sacramento to oppose a California proposal to give state public health officials instead of local doctors the power to decide which children can skip their shots before attending school.