Measles Vaccine Failure: The Glaring Problem Officials Are Ignoring
It is far from uncommon for vaccinesāincluding the measles-mumps-rubella (MMR) and MMR-plus-varicella (MMRV) vaccines used in the United Statesāto fail to live up to their textbook promises. As of 2019, in fact, leading vaccine scientists admitted that āthe ability of the current measles vaccine to sustain long-term protective immunity and adequate herd immunity in settings with no wild type virus exposureā is āstill a subject of debate.ā Right at the starting gate, anywhere from 2% to 12% of children who receive their first measles-containing vaccine exhibit āprimary vaccine failureāādefined as vaccine non-responsiveness. For largely unknown reasons, this subset of children (and also adults) fails to mount the expected antibody response after either an initial vaccine or a booster shot. Even in those for whom the vaccine appears to ātake,ā vaccinated individuals āhave lower levels of measles-specific antibody than do those with immunity derived from exposure to wild-typeā measles virus. Secondary vaccine failure (waning immunity) is also a built-in feature of measles (and other) vaccines, with vaccine efficacy acknowledged to be ālower and not life-long compared to the wild type virus infection.ā Studies show that levels of measles antibody progressively decreasewith increased time since vaccination. Moreover, additional boosters do not solve the problem. In a CDC study of 18-28 year-olds who were given a third dose of MMR vaccine, protection petered out in less than a yearāa fact that forced the studyās authors to argue against a routine third dose.





















