1. Which of the following is NOT a general characteristic of disease

transmission?

a) Direct contact

b) Airborne transmission

c) Vertical transmission

d) Genetic inheritance

Answer: d) Genetic inheritance

Rationale: Disease transmission refers to how diseases are spread from

one individual to another. Genetic inheritance is not a typical mode of

disease transmission as it involves the passing down of genetic traits from

parents to their offspring, rather than the direct spread of a disease-causing

agent.

2. Which of the following is an example of a vector-borne disease?

a) Influenza

b) Tuberculosis

c) Malaria

d) Hepatitis A

Answer: c) Malaria

Rationale: Vector-borne diseases are transmitted through the bite of an

infected vector, such as mosquitoes or ticks. Malaria is an example of a

vector-borne disease as it is transmitted by the Anopheles mosquito.

3. Which of the following is a primary symptom of COVID-19?

a) Diarrhea

b) Headache

c) Cough

d) Abdominal pain

Answer: c) Cough