Description
If a second dose of measles, mumps, rubella, and varicella vaccine is needed, ProQuad may be used. This dose is usually administered at 4 to 6 years of age. At least 1 month should elapse between a dose of a measles-containing vaccine, such as M-M-R®II (Measles, Mumps, and Rubella Virus Vaccine Live), and a dose of ProQuad. At least 3 months should elapse between a dose of varicella-containing vaccine and ProQuad.