The ProQuad
vaccine protects against
measles, mumps, rubella, and
varicella (
chicken pox). Children receiving ProQuad do not also need
VariVax, the individual
vaccination for chicken pox. The vaccine is very effective—for example, one dose is estimated to be 93% effective at preventing measles, with two doses at 97%. Get Proquad for as low as $269.09, which is 18% off the average retail price of $326.64 for the most common version, by using a GoodRx coupon.