Social & Preventive Medicine General d90d6e75 Generation time in epidemiology is defined as ? A The interval between marriage and the bih of first child B The interval of time between the receipt of infection by host and maximal infectivity of the host C The interval of time between primary case and secondary cases D Interval of time between invasion by infectious agent and appearance of first sign or symptom of the disease in question High-Yield Explanation Ans. is 'b' i.e., Interval of time between receipt of infection by the host and maximal infectivity of the host