[Humoral immunity, 5 years after anti-tetanus vaccination, in a group of malaria-infected and malnourished African children].
In 1978 a campaign of vaccination against tetanus was conducted in a savannah biotope of Burkina Faso (Garango). The effects of 1 or 2 tetanus toxoid injections and of concomitant malnutrition and malaria infection were assessed by measurements of specific antibody and cell-mediated responses. None of these 2 variables did interfere with the development of anti-tetanus immunity. In 1983, 5 years later, similar results were obtained, giving evidence that in spite of malnutrition and malaria, factors known for their immunosuppressive action, a good degree of specific protection was acquired. This local survey revealed also that multiple schemes of vaccination, 1 to 5 injections of vaccine over 5 years, had been performed by unidentified operators. The issues raised by such incongrous, costly and possibly detrimental practices are discussed within the frame of national vaccination policies.