Trump and Kennedy asserted without evidence a link between vaccines and autism.
Three new cases of mumps were confirmed at Station Middle School in Barrington with several others that could test positive.
In an effort to combat a growing outbreak of mumps centered around northwest suburban Barrington, Lake County health officials are setting up a vaccination clinic for faculty and staff of the hardest-hit school.
With a third case of the mumps confirmed Tuesday at Barrington High School, the Lake County Health Department officials called the cluster of confirmed and probable mumps cases an outbreak.
Lake County health officials said there are two more possible mumps cases - one suspected, one probably - adding to the number of suspected, probable and confirmed cases of mumps in Lake and Cook counties.
Suburban school officials have asked students and parents to look out for signs of mumps after several possible cases at schools in Barrington and Arlington Heights.