APHA Immunization Pharmacology & Vaccine Science 2

Question 1

Which immune cells are the primary producers of antibodies following vaccination?

Accepted Answer

Plasma B cells

Answer

Plasma B cells are differentiated B lymphocytes that are the primary source of circulating antibodies after antigen stimulation from vaccination.

Question 2

What is seroconversion in the context of immunization?

Accepted Answer

Development of detectable antibodies following vaccination or infection

Answer

Seroconversion refers to the point at which a person develops a detectable level of antibodies in response to vaccination or natural infection.

Question 3

Why are live attenuated vaccines generally contraindicated in severely immunocompromised patients?

Accepted Answer

The attenuated pathogen can replicate and cause disease in the absence of normal immune defenses

Answer

In severely immunocompromised patients, live attenuated organisms can replicate unchecked and cause vaccine-strain disease due to absent or deficient immune defenses.

Question 4

Which vaccine component is responsible for a local injection site reaction such as redness and swelling?

Accepted Answer

Adjuvants like aluminum salts that stimulate local innate immune activation

Answer

Aluminum-based adjuvants trigger local innate immune activation, resulting in the classic injection site reactions of erythema, swelling, and tenderness.

Question 5

What is the significance of herd immunity threshold in community vaccination programs?

Accepted Answer

It is the vaccination coverage level at which pathogen spread is interrupted, protecting unvaccinated individuals

Answer

The herd immunity threshold is the proportion of a population that must be immune to stop disease transmission and protect those who cannot be vaccinated.

(APHA) APhA Pharmacy-Based Immunization Certificate Practice Test

(APHA) APhA Pharmacy-Based Immunization Certificate Practice Test

APHA Immunization Pharmacology & Vaccine Science 2