[Epidemiological characteristics of viral hepatitis in the Mongolian People's Republic].

Viral hepatitis morbidity is still dominant in the infectious pathology of the population of the country. The main epidemiological characteristics of morbidity in serum and infectious hepatitides in the republic (the dynamics of morbidity in different years, the territorial distribution of morbidity, its seasonal character, the age structure of the patients, etc.), as well as measures aimed at ensuring the prophylaxis of each of these infections and taken with due regard to their epidemiological characteristics are analyzed.

Evaluation of the prophylactic effect of gamma globulin in meningococcal infection.

Results of two controlled epidemiological tests evaluating the prophylactic effect of gamma globulin of Monogolian and Soviet production against meningococcal infection are presented. Observations were carried out on children aged 3 months to 4 years, not attending children's establishments. The results of the observation revealed the following prophylactic effect of gamma globulin of Mongolian production in the first two months after administration: index of efficiency--5.