A blood test called a measles serology can measure the level of measles antibodies in a person’s blood. If the level is high, it’s safe to assume that person is immune to measles, as a result ...

Sonja S. Hutchins, MD, MPH,* Stephen C. Redd, MD, Stephanie Schrag, PhD, Deanna Kruszon-Moran, MS,§ Karen Wooten, MA,* Geraldine M. McQuillan, PhD,§ William Bellini ...

One exposure has been reported in Montreal, two in Laval, and a dozen sites have been identified in the Laurentians.

Serologic evidence of immunity (positive IgG blood titers). Must provide copy of laboratory report with reference range. Proof of attendance in a U.S. primary or secondary school after 1980, plus ...