Homeimmune system nclex questions Multiple Choice Quiz on Vaccines | Immunology Quiz 1. Which of the following statements is true of DNA vaccines? DNA vaccines can have distinct advantages when preparing subunit vaccines against viruses that frequently alter their antigens DNA vaccines require cold storage in tropical countries DNA vaccines must be administered on gold particles if they are to be effective DNA vaccines are only effective if followed by a protein boost 2. To which one of the following groups would it be acceptable to give a live attenuated viral vaccine? Patients treated with steroids Patients with leukemia A Children under 8 years of age Patients treated with radiotherapy 3. DNA vaccines can be effective if they encode expression of antigen encode expression of appropriate cytokines can be engineered to contain DNA motifs that have an adjuvant effect all of these 4. Polysaccharides are rarely effective vaccines by themselves because they large repeating B cell epitopes only induce CTL responses are usually same in people and bacteria lack classical T cell epitopes 5. For vaccination against tuberculosis, what is the most important facet of the immune response to be stimulated? macrophage-activating cell-mediated immunity Cytotoxic T cells Neutrophils all of these 6. An antibody to CD40 would be expected to enhance vaccine effectiveness by inducing dendritic cell apoptosis blocking CD40 signalling on dendritic cells activating CD40 signalling on dendritic cells none of these 7. What is the minimum percentage of children that need to be vaccinated successfully in order to achieve herd immunity to Diphtheria? 25% 50% 75% 100% 8. A small protein subunit used in a vaccine can fail to stimulate T cell immunity because of: lack of carrier determinants lack of glycosylation HLA related unresponsiveness none of these 9. An antibody response to a protein vaccine can only be obtained: If disulfide bonds are maintained If the peptide bonds are maintained If the molecule is glycosylated If the molecule maintains discontinuous epitopes 10. Which of the following is a feature of a Salmonella based vaccine expressing antigens from other infectious agents? The organism does not need to be attenuated Only secretory IgA is elicited Immunity is limited to the gut It provokes both oral and systemic immunity Score = Correct answers: Tags: immune system nclex questions immunology quiz medical immunology mcq Medical Multiple Choice quiz about vaccines quiz on vaccines the quiz about vaccines Facebook Twitter