PATHOLOGY MCQ
IMMUNE RESPONSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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cow pox
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an inactive strain of the pathogen
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a small amount of the pathogen
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small pox
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Detailed explanation-1: -Inactivated vaccines use the killed version of the germ that causes a disease. Inactivated vaccines usually don’t provide immunity (protection) that’s as strong as live vaccines. So you may need several doses over time (booster shots) in order to get ongoing immunity against diseases.
Detailed explanation-2: -Two live attenuated vaccine strains have been mainly used since 1967: Jeryl Lynn and Urabe strain vaccines. Both are produced in chick embryo cell culture and are available in monovalent form or combined as MMR.
Detailed explanation-3: -Vaccines contain killed, weakened, or synthetically manufactured versions of the disease-causing germ or parts of the germ called antigens. Some newer vaccines (e.g., COVID-19 mRNA vaccines) contain instructions for producing antigens rather than the antigen itself.