A twice vaccinated person not only contracted measles, but spread it to 2 other twice vaccinated people.
Outbreak of Measles Among Persons With Prior Evidence of Immunity, New York City, 2011
Jennifer B. Rosen1, Jennifer S. Rota2, Carole J. Hickman2, Sun Sowers2, Sara Mercader2, Paul A. Rota2, William J. Bellini2, Ada J. Huang3, Margaret K. Doll1, Jane R. Zucker1,2, and Christopher M. Zimmerman1
Clin Infect Dis. (2014)
First published online: February 27, 2014
Conclusions. This is the first report of measles transmission from a twice vaccinated individual.