Acknowledgements
MUMPS, RUBELLA, MEASLES
We would like to give a huge thanks to all of the field staff in Argentina. In addition, we would like to thank Leila M. Martínez, Erika Machicado Macías, María Elena Dattero, Stella M. Hirmas Riade for their assistance with laboratory procedures; Paul Rota, Carole Hickman, and Joseph Icenogle for their advisement related to measles, mumps, and rubella antibody testing; and all of the study participants and their families. Funding was provided by the U.S. CDC, PAHO, and the Ministry of Health of Argentina.