[Effect of yellow fever virus, vaccine strain 17D, on the functional state of the central nervous system in mice].

The experimental infection caused by yellow fever virus (strain 17D) induced the appearance of anomalies in the behavior of BALB/c mice, revealed by the labyrinth methods. These anomalies in behavior were manifest in the animals with the strongly pronounced clinical picture of the disease and always preceded the clinical signs. Anomalies in behavior appeared in the animals in the complete absence of the clinical signs of the disease and could persist for a long time even with minimum pathological changes in the brain.