APHA Vaccine-Preventable Diseases & Immunology 1 — Questions and Answers
Question 1: Which disease was eradicated worldwide due to vaccination?
- Polio
- Measles
- Smallpox (Correct answer)
- Tetanus
Correct answer: Smallpox
Smallpox is the only human disease eradicated globally through an effective vaccination program.
Question 2: Which immune system component is responsible for producing antibodies?
- T cells
- Macrophages
- B cells (Correct answer)
- Neutrophils
Correct answer: B cells
B cells, also known as B lymphocytes, are responsible for producing antibodies in response to pathogens.
Question 3: What type of vaccine is the MMR vaccine?
- Inactivated vaccine
- Subunit vaccine
- Live attenuated vaccine (Correct answer)
- Toxoid vaccine
Correct answer: Live attenuated vaccine
The MMR vaccine is a live attenuated vaccine, meaning it contains weakened forms of the virus.
Question 4: Which of the following is a symptom of diphtheria?
- Persistent vomiting
- Rash on palms
- Thick gray membrane in throat (Correct answer)
- Nasal bleeding
Correct answer: Thick gray membrane in throat
Diphtheria can cause a thick gray coating in the throat that can lead to breathing difficulties.
Question 5: What is the primary function of memory cells in immunity?
- Engulf pathogens
- Secrete histamines
- Produce immediate fever
- Respond faster to future infections (Correct answer)
Correct answer: Respond faster to future infections
Memory cells remember past infections and enable a quicker and stronger response upon re-exposure.
Question 6: Which of the following vaccines protects against a bacterial disease?
- MMR
- DTaP (Correct answer)
- Varicella
- Rotavirus
Correct answer: DTaP
The DTaP vaccine protects against diphtheria, tetanus, and pertussis, all of which are caused by bacteria.
APHA Vaccine-Preventable Diseases & Immunology 1
Which disease was eradicated worldwide due to vaccination?