INTERFERENCE BETWEEN ST. LOUIS ENCEPHALITIS VIRUS AND EQUINE ENCEPHALOMYELITIS VIRUS (WESTERN TYPE) IN THE CHICK EMBRYO.
Interference between two unrelated viruses is reported. Equine encephalomyelitis virus grows only to a limited degree, if at all, when injected into chick embryos in which St. Louis encephalitis virus is being propagated.
Duffy
Carl E
CE