| 摘要 |
<p>A polyvalent virus vaccine for immunization of warm-blooded animals comprising a mixture of a rabies virus, preferably rabies strain No. 675 deposited in the Czechoslovak National Collection of Type Cultures of the Institute of Hygiene and Epidemiology in Prague under No. CNCTC No. A 04/77, and a canine distemper virus, said mixture being substantially free of material emanating from more than one type of tissue cell used to propagate the viruses and a process for its preparation by infecting a suitable single cell system with a rabies virus strain, propagating the rabies virus, infecting the cell system with at least one canine distemper virus, propagating the viruses and separating the polyvalent vaccine from the propagation product.</p> |
