California Gov. Gavin Newsom got a booster shot of Moderna vaccine in Oakland on Wednesday, as he was eligible for an added shot because his original dose was the single Johnson & Johnson. -snip- "I'm choosing not to do J&J -- not because I had problems with J&J, but to make the point about the opportunity to mix and match," Newsom said. "So I had the choice. Mixing matching is something we do commonly in vaccines."
