CDC clarifies preference on childhood vaccines WASHINGTON (Reuters) - Children who get a combined vaccine against measles, mumps, rubella and chicken pox are slightly more likely to have seizures compared to those getting two separate shots for the same diseases, U.S. officials said on Thursday. The seizures are not usually life-threatening and the U.S. Centers for Disease Control and Prevention said it was no longer expressing a preference that children get the so-called MMRV combined vaccine rather than two shots -- the MMR vaccine against measles, mumps and rubella (German measles) and a separate one against varicella (chicken pox). The CDC said it made the change after seeing evidence that children who got the combined MMRV vaccine faced an elevated, but still very small, risk of suffering febrile seizures after vaccination compared to those who got the two shots. A febrile seizure is a convulsion in young children associated with an increase in body temperature, often fr
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