As the multistate measles outbreak is attracting national attention, Oregon might soon switch from being a state with one of the easiest immunization opt-out laws to among the toughest.

Up until 2014, Oregon parents could opt out of their children's school immunizations simply by signing a form. The rate of parents using the exemption has been growing steadily since 2000, the same year measles was declared eliminated, said Dr. Paul Cieslak, medical director of Oregon Health Authority's communicable disease and immunizations division.  Read more...