Question

the rise in herd immunity amongst a population can be directly attributed to
improved handwashing
none of these answers
vaccinations
increased use of antibiotics
antibiotic - resistant microorganisms
question 6 (1 point)
which of the following definitions is incorrect?
pandemic: a disease that affects a large number of people in the world in a short
time
incidence: number of new cases of a disease
endemic: a disease the is constantly present in a population
sporadic: a disease that affects a population occasionally
epidemic: a disease that is constantly present across the world

Explanation:

• Herd immunity is achieved when a significant portion of a population is immune (through vaccination or prior infection) to a disease, reducing its spread. Vaccinations directly increase the immune portion. Handwashing helps prevent spread but not directly build herd immunity. Antibiotics treat bacterial infections (not relevant to herd immunity for most diseases; some diseases like tetanus are bacterial but herd immunity concept is more about vaccination - induced immunity). Antibiotic - resistant microorganisms are a problem in treatment, not in building herd immunity.
• For the definitions:
• Pandemic: correct as it's a global, widespread disease in a short time.
• Incidence: correct as it's new cases.
• Endemic: correct as a constantly present disease in a population.
• Sporadic: correct as occasional occurrence.
• Epidemic: incorrect. An epidemic is a disease that affects a large number of people in a region (not constantly present across the world; that would be pandemic).

Answer:

• First question: C. vaccinations
• Second question: E. epidemic: a disease that is constantly present across the world