The Advisory Committee on Immunization Practices (ACIP) recommends a two-dose vaccine schedule for measles, mumps, rubella and varicella vaccines for children, with the first dose at age 12-15 months and the second at age 4-6 years.accines and Immunizations. ShareCompartir. For the first dose of measles, mumps, rubella, and varicella vaccines at age 12-47 months, either MMR vaccine and varicella vaccine or MMRV vaccine may be used.
grackle. 1  any of several long-tailed American birds of the family Icteridae, especially of the genus Quiscalus, having usually iridescent black plumage. 2  any of several Old World birds of the family Sturnidae, especially certain mynas.
Definition of racket. 1  1 : confused clattering noise : clamor. 2  2a : social whirl or excitementb : the strain of exciting or trying experiences. 3  3a : a fraudulent scheme, enterprise, or activityb : a usually illegitimate enterprise made workable by bribery or intimidationc : an easy and lucrative means of livelihoodd slang : occupation, business.