Question

SHORT ANSWER TYPE
Define the terms infection, pathogen, incubation period and allergen

Answer 1

The incubation period is the time to get exposed to an infectious agent until the appearance of signs and symptoms of the disease.

The substance that caused allergic response is called as an allergen.

The pathogen is the bacteria, virus or any other microorganism which caused disease.

The infection is called as the disease state in which the pathogen enters into the body and start multiplying and create untoward conditions to the human body.