Related Experiment Videos
Evaluation of the prophylactic effect of gamma globulin in meningococcal infection
Insights
Gamma globulin effectively prevents meningococcal infections in young children. Mongolian gamma globulin provided protection for two months, while Soviet gamma globulin offered protection for one month.
Area of Science:
- Epidemiology
- Immunology
- Public Health
Background:
- Meningococcal infections pose a significant risk to young children.
- Effective prophylactic measures are crucial for controlling outbreaks.
Purpose of the Study:
- To evaluate the prophylactic efficacy of Mongolian and Soviet gamma globulin against meningococcal infections.
- To determine the duration and effectiveness of gamma globulin's protective effect.
Main Methods:
- Two controlled epidemiological tests were conducted.
- Observations involved children aged 3 months to 4 years not attending institutional care.
- Efficacy was measured by the index and coefficient of efficiency, and severity of infection.
Main Results:
- Mongolian gamma globulin demonstrated an 80% efficiency for two months (index 5.0).
- Soviet gamma globulin showed 82.2% efficiency for one month (index 5.3).
- Children receiving gamma globulin experienced less severe infections, with no fatalities compared to the control group.
Conclusions:
- Gamma globulin is recommended for meningococcal infection prophylaxis in children aged 3 months to 4 years.
- The duration of protection correlates with specific antibody titers in the gamma globulin preparation.
- A single dose of 1.5 ml is suggested for use in outbreak areas.
Abstract:
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--5.0, coefficient of efficiency--80%, P greater than 0.01. The efficiency of the prophylactic effect of Soviet gamma globulin was limited to one month: the index of efficiency amounted to 5.3, the coefficient of efficiency to 82.2%, P greater than 0.01. The course of meningococcal infection in the children who had received gamma globulin was less severe than in the children of the control group. Lethal outcome was recorded only in the group of children who had not received gamma globulin. The duration of the prophylactic effect of gamma globulin was found to depend on the height of the titres of specific antibodies in the preparation. The preparations are recommended as prophylactic means for children aged from 3 months to 4 years in doses of 1.5 ml (one dose) in the foci of meningococcal infection.