Which of the following strategies would be expected to be LEAST effective in the prevention and/or treatment of AIDS?

Question

Quizplus · Accepted Answer

Vaccination with an HIV envelope-derived protein would induce a largely humoral response,but this has been shown to be ineffective in preventing disease.In particular,antibody responses to a variety of HIV antigens are detectable within 6 to 9 weeks in the natural course of HIV infection,but there is little evidence that these antibodies have any beneficial effect in controlling infection.Rather,it is likely that an effective vaccine will have to stimulate both humoral and cell-mediated responses to viral antigens critical for the life cycle.In the future,this may be safely accomplished with the use of live recombinant non-HIV viral vectors carrying HIV genes.Protection from contact with HIV through abstinence from risky behavior is the most effective means of preventing infection.Chronic administration of HAART (highly active antiretroviral therapy),a triple-drug therapy combining a protease inhibitor with two non-nucleoside reverse transcriptase inhibitors,has proven to be remarkably effective in reducing plasma viral RNA to undetectable levels in treated patients for several years.Note that single drug therapy against HIV is less effective than HAART because the virus has an extremely high mutation rate and can more readily develop resistance to the drug.Also,even short-term administration of a nucleoside reverse transcriptase inhibitor,such as zidovudine (AZT),to HIV-positive pregnant women has been shown to remarkably decrease rates of transmission to newborns.

Which of the Following Strategies Would Be Expected to Be