In California, Aetna U.S. Healthcare has addressed a major complaint of the state's leading physician organization — that relatively low capitation rates force pediatricians to eat the cost of recommended vaccines. Aetna's California plan will begin to pay physicians for any immunizations newly recommended by the American Academy of Pediatrics and the Centers for Disease Control for up to one year.

The California Medical Association has said that pediatrics groups often lose money, particularly on children covered by Medicaid, because of the cost of vaccines. Aetna's policy would pay physicians for newly recommended vaccines until recontracting time.

The CMA applauded Aetna's action.