California has taken a stance against President Donald Trump's guidance on childhood vaccines. The state has vowed to ignore the president's suggestions, deeming them dangerous. President Trump's proposal involves splitting up the measles, mumps and rubella shot.

This is the extent of the information available on the president's plan. Further details on the president's guidance and California's response can be found through SFGate, a local news source for the Bay Area, including San Francisco.