Key takeawaysMMRV shot no longer recommended for children under 4 years of age. Thursday's decision that MMRV will still be covered by the federal Vaccines for Children program was reversed. COVID-19 vaccines no longer recommended for all Americans aged 6 months and over. When it met on Friday, September 19, the ACIP held a second vote on the question of whether the Vaccines for Children program would cover MMRV shots for under-4s. The recommendation for children aged 12 months to 4 years is that they receive separate MMR and varicella vaccines.