Infectious Diseases MCQs

By: Prof. Dr. Fazal Rehman Shamil | Last updated: September 12, 2024

1. Which of the following pathogens is responsible for tuberculosis?
A) Mycobacterium leprae
B) Mycobacterium tuberculosis
C) Streptococcus pneumoniae
D) Staphylococcus aureus

Answer: B) Mycobacterium tuberculosis

2. What is the primary vector for the transmission of malaria?
A) Ticks
B) Fleas
C) Mosquitoes
D) Lice

Answer: C) Mosquitoes

3. Which antibiotic class is commonly used to treat methicillin-resistant Staphylococcus aureus (MRSA)?
A) Penicillins
B) Cephalosporins
C) Vancomycin
D) Macrolides

Answer: C) Vancomycin

4. What is the causative agent of Lyme disease?
A) Borrelia burgdorferi
B) Rickettsia rickettsii
C) Treponema pallidum
D) Chlamydia trachomatis

Answer: A) Borrelia burgdorferi

5. Which viral infection is known for causing a “bull’s-eye” rash?
A) Chickenpox
B) Lyme disease
C) Measles
D) Herpes simplex

Answer: B) Lyme disease

6. Which of the following diseases is caused by the human immunodeficiency virus (HIV)?
A) Tuberculosis
B) Acquired immunodeficiency syndrome (AIDS)
C) Hepatitis B
D) Syphilis

Answer: B) Acquired immunodeficiency syndrome (AIDS)

7. What is the primary mode of transmission for hepatitis B virus (HBV)?
A) Airborne droplets
B) Sexual contact
C) Contaminated food
D) Vector-borne transmission

Answer: B) Sexual contact

8. Which organism is known for causing a severe gastrointestinal illness characterized by watery diarrhea?
A) Escherichia coli (E. coli)
B) Salmonella enterica
C) Clostridium difficile
D) Vibrio cholerae

Answer: D) Vibrio cholerae

9. What is the standard treatment for bacterial meningitis caused by Neisseria meningitidis?
A) Antiviral medication
B) Oral antibiotics
C) Intravenous antibiotics
D) Antifungal medication

Answer: C) Intravenous antibiotics

10. Which of the following diseases is preventable by vaccination with the MMR vaccine?
A) Influenza
B) Measles
C) Tuberculosis
D) Hepatitis C

Answer: B) Measles