Abstract
The onset of eastern equine encephalomy elitis and western equine encephalomyelitis can be observed following the intratesticular inoculation of the viruses in mice. The virus content of each organ (blood, spleen, testis, brain and spinal cord) of the inoculated mice was observed periodically by means of intracerebral inoculation of mice.
The obtained results show that the viruses inoculated intratesticularly enter the blood circulation immediately and then propagate rapidly in the central nervous system. Following the virus multiplication in the central nervous system, the intratesticular multiplication was also recognized.