Question

(b) What are the mediums of the
spread of diseases ?
(c) What happens when there is an
epidemic of a disease ?
(d) What is vaccination​

Answer 1

Answer:

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b) Contaminated air, water, food are mediums of the spread of disease. Lice, flea, and mosquito also spread certain diseases. In case of skin diseases, direct contact through touch and contact with contaminated clothes or utensils can also cause disease.

c)An epidemic occurs when an infectious disease spreads rapidly to many people.

d)Vaccination is the administration of a vaccine to help the immune system develop protection from a disease. Vaccines contain a microorganism or virus in a weakened, live or killed state, or proteins or toxins from the organism.