Immunology Quiz #17: Passive vs Active Immunity

1. A 2-month-old infant is brought to the clinic for routine examination. The mother is concerned about the infant's vulnerability to infections. The physician explains that the infant is protected against some infections due to antibodies acquired from the mother. Which of the following types of immunity describes the protection this infant has? 

Question 1 of 5

2. A 25-year-old laboratory worker accidentally exposes himself to a culture of attenuated Hepatitis B virus. He reports the incident and is immediately given an injection. This injection likely contains which of the following to confer immediate protection? 

Question 2 of 5

3. A 30-year-old woman receives a tetanus toxoid injection after stepping on a rusty nail. The tetanus toxoid acts by stimulating the woman's immune system to produce specific antibodies against the tetanus toxin. Which of the following types of immunity is primarily induced by the tetanus toxoid injection? 

Question 3 of 5

4. A newborn is administered a vaccine as part of the standard immunization schedule. The purpose of this vaccination is to stimulate the baby's immune system to produce specific antibodies and memory cells against the targeted pathogen. This process exemplifies which of the following types of immunity? 

Question 4 of 5

5. A patient with a compromised immune system is at increased risk for opportunistic infections. To provide immediate protection against specific pathogens, the patient receives an injection of preformed antibodies. This form of protection is best described as: 

Question 5 of 5


 

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