[Clinical picture and histopathology of Viliuisk encephalomyelitis].

Clinical and histological study of 8 cases of Vilyui encephalomyelitis (VEM), characterized by chronic and acute course has shown that all the features of local non-purulent encephalomyelitis with marked dystrophic and atrophic changes of neural tissue were characteristic of VEM. Immunomorphological reaction that manifested as perivascular and membrane lymphoplasmacytic infiltrations was observed in patients with a more acute VEM course or with exacerbation of chronic VEM. Hydrocephalus is considered as a serious aggravating factor that favours atrophic nervous changes during protracted and chronic VEM course.

Analysis of epidemiological peculiarities of rubella based on a mathematical model (according to observations over 10 years in Moscow).

The main epidemiological values characterizing rubella in Moscow were calculated on the basis of a new mathematical model. Quantitative estimates of the intensity of infection in different age groups of the population were obtained. It has been established that the risk of infection in children is especially high in comparison with adult population.