Prevalence of an Illness Refers to

question 18

Multiple Choice

Prevalence of an illness refers to

• A) the proportion of the population that has a disease at a specific time.
• B) the number of new cases of a disease in a year.
• C) the percentage of new cases of a disease in a year.
• D) the percentage of total deaths caused by a disease in one year.

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Definitions:

Tuberculosis (TB)

A contagious bacterial infection caused by Mycobacterium tuberculosis, primarily affecting the lungs but may spread to other organs.

Antitussive/Expectorant

Medications used to suppress coughing (antitussive) and help clear mucus from the respiratory tract (expectorant).

Sputum

Mucus that is coughed up from the lower airways (bronchi and lungs), often used in medical testing to detect pathogens or abnormalities.

Bronchitis

An inflammation of the bronchial tubes in the lungs, usually caused by infection or exposure to irritants.