Causes of Actively Acquired Immunity
The following points highlight the two main causes of actively acquired immunity. The causes are: 1. Infectious Agents 2. Vaccination. Actively Acquired Immunity: Cause # 1. Infectious Agents: Infectious Agents of two types: (a) Some Infections: Diphtheria, whooping cough, small pox and mumps induce a long lasting immunity, (b) Some Infections: Common cold and influenza confer immunity lasting for a short [...]