Right now it's hard to say if that’s happening, says Deeks, because the number of provincial cases this year has been low. "But we do have pockets where there are groups of people who tend not to immunize, and those areas are much more susceptible if mumps is introduced."(NHL mumps outbreak: 7 big questions answered - CBC news Dec 16 2014)
Is 'who tend not to immunize' right? Shouldn't it be 'who tend not to get immunized'? Thank you.