Lack of Evidence of Endogenous Avian Leukosis Virus and Endogenous Avian Retrovirus Transmission to Measles Mumps Rubella Vaccine Recipients
Althaf I. Hussain*, Vedapuri Shanmugam*, William M. Switzer*, Shirley X. Tsang*, Aly Fadly†, Donald Thea‡, Rita Helfand*, William J. Bellini*, Thomas M. Folks*, and Walid Heneine*
Author affiliations: *Centers for Disease Control and Prevention, Atlanta, Georgia, USA; †Avian Disease and Oncology Laboratory, U.S. Department of Agriculture, East Lansing, Michigan, USA; ‡Harvard Institute for International Development, Cambridge, Massachusetts, USA
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