<prompt> tafsiri zifuatazo kutoka kwa swahili hadi kiingereza.cdc inapendekeza watoto wote kupata dozi mbili za chanjo ya ukambi, matumbwitumbella mmr, kuanzia na kipimo cha kwanza katika miezi ya 12-15 na kipimo cha pili kwa umri 4-6.  <response>: the cdc recommends that all children receive two doses of the measles-mumps-rubella mmr vaccine, the first at 12-15 months of age and the second at 4-6 years. 