BIO 3124 Lecture Notes - Lecture 19: Dpt Vaccine, Hpv Vaccines, Gardasil

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4 Apr 2018

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November 30, 2016: acquired immunity - vaccines. Get the antigen from being around a sick person. Natural: antibody transfer (from mother to child: transplacental or colostrum transfer, but, the immune system hasn"t learned for itself and won"t be protected next time. Giving snake antivenom: but, the immune system hasn"t learned and won"t be protected next time. Vaccine: suspension of attenuated or killed microorganisms, or a fraction of these, administered to induce an immune response and thus prevent the infectious disease. Anatoxin: modi ed non-toxic version of a toxin which retains its immunogenicity. Inactive form of the toxin that is still similar enough to the toxin that you will have learnt how to deal with it. Adjuvant: compound added to the vaccine preparation to increase the immune response. Helps ensure that the 3rd line is recruited and will assess, learn, and remember for next time. Preservative: thiomersal (an organomercurial) - antibacterial and antifungal.

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1) What is the most efficient and cost-effective way to control infectious diseases? A) variolation C) passive immunotherapy using immunoglobulins B) active immunization by vaccination D) immune testing E) autoimmunization 2) Variolation was first used _______ A) to immunize the Chinese against smallpox. B) to protect individuals against the plague during the Middle Ages. C) to spread smallpox throughout the Native American populations. D) to treat individuals exposed to hepatitis. E) for research purposes in the 20th century. 3) Almost a century after Edward Jenner introduced successful vaccination, Louis Pasteur developed vaccine(s) against A) anthrax. B) human cholera. C) rabies. D) influenza. E) both anthrax and rabies. 4) Pathogens may be attenuated for use in vaccines by ______ A) raising the pathogen for several generations in tissue culture cells. B) genetic manipulation. C) treatment with formaldehyde. D) genetic manipulation coupled with treatment with formaldehyde. E) genetic manipulation and/or raising the pathogen for several generations in tissue culture cells. 5) Which of the following statements regarding an inactivated vaccine is FALSE? A) It can be produced with deactivated whole microorganisms. B) It can be produced from antigenic fragments of a pathogen. C) It is safer than an attenuated vaccine. D) It is made from mutated forms of the pathogen. E) It is made from pathogens that cannot replicate. 6) Which of the following substances is commonly used to inactivate microbes before using them for vaccination? A) formaldehyde B) aluminum C) mineral oil D) saponin E) aluminum phosphate 7) What type of vaccine is the hepatitis B vaccine? A) inactivated whole pathogen B) attenuated vaccine C) toxoid vaccine D) a recombinant vaccine composed of a single antigen of the hepatitis virus E) a vaccine produced by treating the virus with formaldehyde 8) An infectious disease researcher isolates the pathogen responsible for an emerging disease. The microbe is grown in the lab for many generations. A preparation of the laboratory-grown microbe is treated with ionizing radiation and then tested for its potential as a vaccine. What type of vaccine is this? A) attenuated B) subunit C) combination D) toxoid E) inactivated whole 9) OPV, the attenuated oral poliovirus vaccine, is no longer administered in the U.S.A. because it A) is very toxic. B) does not provide good immunity. C) can revert to wild-type virulence. D) can be spread to contacts. E) can be spread to contacts and can revert to wild-type virulence. 10) Hybridomas are factories for antibodies and are produced by _____ A) combining two virus-infected cells. B) fusing plasma cells with myeloma cells. C) repeated culture of a pathogen until it loses its virulence. D) combining a viral infected cell with a bacterial infected cell. E) combining two bacterial infected cells. 11) The study and diagnosis of antigen-antibody interactions in the blood is known as _____ A) immunology. B) hematology. C) serology. D) cytology. E) histology. 12) Which type of antibody assay is represented in this figure? A) an indirect ELISA C) an indirect immunofluorescence assay B) a direct ELISA D) a western blot E) an immunodiffusion assay 13) Titration is a serological procedure that A) identifies the causative microbe of an infectious disease. B) determines the amount of an antibody in the blood. C) must be done before the western blot test to diagnose HIV. D) is used for blood grouping. E) has been replaced by genetic engineering in isolating the antigen of a pathogen. 14) A woman uses a home pregnancy test kit that tests for hCG hormone in urine. She knows this is a type of antibody assay from the kit brochure. Antibodies reacting with the hormone produce two lines on the test strip. What specific type of antibody assay does this represent? A) a direct immunofluoresence test C) an immunochromatographic assay B) a complement fixation test D) an ELISA E) a neutralization assay 15) The complement fixation test uses red blood cells as the target for complement activation. Test serum containing antibodies is combined with a known amount of antigen in a tube, and then the RBCs and antibodies against the RBCs are added. A positive result for the complement fixation test would be A) a line of precipitate near the bottom of the tube. C) loss of color in the tube. B) a cloudy solution in the tube. D) a fluorescent precipitate. E) a solution that is clear due to precipitation of RBCs.

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BIO 3124 Lecture Notes - Lecture 19: Dpt Vaccine, Hpv Vaccines, Gardasil

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