A "subunit" vaccine is considered safer than a "live attenuated" vaccine because: No live or replication-competent organisms are delivered, which reduces the potential for adverse effects like inflammation. No live or replication-competent organisms are delivered, which reduces the immunogenic potency of the vaccine. No live or replication-competent organisms are delivered, which enhances the immunogenic potency of the vaccine. They contain no preservatives like thimerosal.
Added by Todd H.
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Step 1: A "subunit" vaccine contains only specific antigens or parts of the pathogen, rather than the whole organism. Show more…
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All of the following are disadvantages of an attenuated vaccine except: Exogenous protein contaminants may be present The live vaccine may revert to a more virulent form Antibody response is not as good as with inactivated viruses None of the above; these are all disadvantages of live virus Live viruses generally require refrigeration
Marlyn J.
A vaccine is effective because ________. the vaccine contains the lymphocytes necessary to fight infection the vaccine contains the antibodies necessary to fight infection the secondary response of the adaptive immunity is faster and more efficient than the primary response lymphocytes are unable to mount an immune response the first time they are exposed to a new pathogen
Mary W.
A vaccine is a substance that contains all or part of a noninfectious version of a disease-causing organism. When the vaccine is administered to a person, the person's immune system attacks the noninfectious version of the organism and learns to recognize its surface proteins. The next time the immune system comes in contact with the same surface proteins, it has a defense already prepared in order to respond quickly to the invading organism. In this way, a vaccine gives people immunity to the disease-causing organism. Vaccines can be life-saving, but there have been a few cases of people catching a disease from the administered vaccine. How might genetically engineered organisms solve this problem?
Adi S.
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