1. Prevention is essential to protect life and there is no substitute for vaccination and immunization Subject(s): Public HealthPhysiciansMothersMother-Child RelationsInjectionsWorld Health Organization
2. A patient being treated in a Sudanese hospital for sleeping sickness. The disease is caused by one ot the parasites whose life-cycles we need to understand better if we are to contol them Subject(s): InjectionsPhysiciansWorld Health Organization