People reading about the current flare-ups of measles cases in British Columbia and elsewhere in Canada might be thinking that their childhood vaccination probably protects them from catching the disease.
But scientists are warning they may be wrong.
People who were immunized against measles and other diseases via childhood vaccinations are getting the disease, suggesting the inoculation's effectiveness wears off over time, Postmedia News reports.
"There's sort of a ticking time bomb here: how many of these people exist, we don't know, and who they are, we can't identify them," Dr. Brian Lichty, associate professor in the division of molecular medicine at McMaster University, told Postmedia News.
The Fraser Valley area east of Vancouver has been ground zero for the B.C. outbreak, with some 230 reported cases to date, most linked to a Christian school where families shun vaccinations for religious reasons.
At leastRead More »from Adults formerly vaccinated against measles getting sick, suggesting immunity may wear off