(Spokane, WA) -- Washington state is one step closer to banning personal and philosophical exemptions from the measles vaccine. The state Senate voted 25 to 22 last night to narrowly pass HB 1638. The bill would prevent parents from choosing not to give their children the measles, mumps and rubella vaccination on personal, philosophical or moral grounds. Parents would only be allowed to opt out of the MMR vaccine for religious reasons. Last night's vote was largely along party lines without a single Republican supporting the bill. The measure now moves on to the state House for a final vote before it heads to Governor Jay Inslee's desk for a signature.