Acknowledgments

Co-authors
Kamran Badizadegan, Nima Badizadegan, Lisa Cairns, Thomas Cherian, Susan Chu, Stephen Cochi, Louis Cooper, Alya Dabbagh, David Featherstone, Marta Gacic-Dobo, James Goodson, Rebecca Martin, William Moss, Cassie Odahowski, Robert Perry, Susan Reef, Paul Rota, Emily Simons, Peter Strebel, Maya Vijayaraghavan, Laura Zimmerman

Other contributors
Measles and Rubella Laboratory Network, Abhijeet Anand, Bettina Bankamp, Jim Barnes, William Bellini, Anindya Sekhar Bose, Casey Boudreau, Jeremy Budd, Edsel Burdge, Anthony Burton, Daniel Carter, Nakia Clemmons, Katie Cuming, Vance Dietz, Mary DiOrio, Walter Dowdle, Messeret Eshetu, David Feltz, Matthew Ferrari, Sietske de Fijter, Nic Fisher, Brian Fowler, Manoj Gambhir, Howard Gary, Andrea Gay, Tracey Goodman, Mark Grabowsky, Christopher Gregory, Ana-Maria Henao-Restrepo, Homero Hernandez, Alan Hinman, Edward Hoekstra, Raymond Hutubessy, Joseph Icenogle, Suresh Jadavh, John Joseph, Sam Katz, Robert Keegan, Nino Khetsuriani, Donald Kraybill, Katrina Kretsinger, John Lange, Robert Linkins, Sara Lowther, Apoorva Mallya, Rebecca Martin, Balcha Masresha, Eric Mast, Sara Mercader, Ali Jaffar Mohamed, Chris Morry, Claude Muller, Walter Orenstein, Mark Pallansch, Linda Quick, Susan Redd, Lance Rodewald, Kuotong Nongho Rogers (Tambie), Anne Schuchat, David Sniadack, Thomas Sorensen, Lilith Tatham, Maya van den Ent, Emilia Vynnycky, Gregory Wallace, Kathleen Wannemuehler, Steven Wassilak, Margaret Watkins, Xia Wei, Jay Wenger, Wang Xiaojun

Funding
CDC: U66IP000519, U2RGH001913
WHO APW200470477, APW200526236