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Q.1. What is infection ? Write a note on reservoir and source of infection

Answer»

Infection is the invasion of an organism's body tissues by disease-causing agents, their multiplication, and the reaction of host tissues to the infectious agents and the toxins they produce.Source of infection: An object is designed as the source of infection, is one in which the agent of infection lives and propagates.

Reservoir of infection:Any person, animal, plant, soil or substance in which an infectious agent normally lives and multiplies. The reservoir typically harbors the infectious agent without injury to itself and serves as a source from which other individuals can be infected. The infectious agent primarily depends on the reservoir for its survival. It is from the reservoir that the infectious substance is transmitted to a human or another susceptible host.



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