Is Mutating Mumps More Than the MMR Can Manage?
Does the MMR vaccine still work against mumps or has the virus mutated?
vaccine strains
Can MMR Shedding Start a Measles Outbreak?
Are measles outbreaks caused by shedding from the MMR vaccine?
Measles Vaccines vs Measles Strains
The best way to get protected against all measles strains is to get vaccinated with two doses of the MMR vaccine.