This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Concept of health and disease, Subject name: Social & Preventive Medicine
Theory of contagion was first enunciated by 
Select and explain. 
A. Paracelsus, B. Fracastorius, C. Vesalius, D. Pare
B: Fracastorius
Answer: B: Fracastorius 
Explanation: Revival of medicine encompasses period from 1453 -1600. Fracastorius an Italian physician enunciated &;theory of contagion&;. He envisaged transmission of infection minute invisible paicles and explained cause of epidemics. He recognised syphilis was transmitted from person to person during sexual relationss. He is founder of epidemiology. Ref: Park&;s textbook of preventive and social medicine; 23rd edition; Pg no: 5