Acting CDC director calls to ‘break up’ the measles, mumps and rubella vaccine into three shots​Acting CDC director calls to ‘break up’ the measles, mumps and rubella vaccine into three shots 

 Acting CDC Director Jim O’Neill called on vaccine manufacturers to develop separate shots for measles, mumps and rubella instead of the current combination vaccine.  ​​Acting CDC Director Jim O’Neill called on vaccine manufacturers to develop separate shots for measles, mumps and rubella instead of the current combination vaccine.