Measles cases in B.C. remain low, with just five confirmed cases — all of them travel-related. But elsewhere, the numbers are exploding. Experts warn of further spread due to low vaccination rates. CBC's medical columnist, Dr. Melissa Lem, says she's been fielding questions from concerned parents. She says school-age kids are particularly vulnerable, and the virus can leave lasting damage to lungs and the immune system and even cause brain damage.
