RT Journal A1 Buynak EB, Larson VM, McAleer WJ, Mascoli CC, Hilleman MR T1 PReparation and testing of duck embryo cell culture rubella vaccine JF American Journal of Diseases of Children JO American Journal of Diseases of Children YR 1969 FD August 1 VO 118 IS 2 SP 347 OP 354 DO 10.1001/archpedi.1969.02100040349033 UL http://dx.doi.org/10.1001/archpedi.1969.02100040349033 AB THE SUCCESSFUL propagation in cell culture of rubella virus by Parkman et al1 and by Weller and Neva2 opened the way to development of a vaccine. A prime factor in acceptability of a live virus vaccine is the cell in which it is prepared, especially if the vaccine is given parenterally. Though rubella virus propagates readily in cell cultures of monkey, dog, rabbit, bovine, or human origin, our principal effort was given to finding an avian source. Having demonstrated that only limited propagation occurred in cell cultures of chick embryo, we directed our attention to domestic fowl with longer periods of gestation, and successful propagation was achieved on the first attempt made on April 8, 1963. Successful growth of the virus in duck cell culture was later confirmed by Fuccillo et al.3 The virus was rapidly attenuated for monkey and man in the Pekin duck embryo cell