Reference no: EM132391373

1. Vaccines have effectively prevented many viral diseases. Attempts over many years to develop an effective vaccine against HIV disease and AIDS, however, have so far met with little success. Why is this so?
2. An epidemiologist from the CDC was presenting a report on the status of AIDS to a congressional committee. In concluding her remarks, she noted that from an epidemiological perspective it was more important to focus on HIV infection than on AIDS, and urged that the Congress consider redirecting funding of AIDS research to reflect this fact. What was the rationale for her request?
3. Even though genetically engineered mosquitoes might be developed that do not allow the reproduction of malaria protozoa, these mosquitoes would have little, if any, immediate effect on the spread of the disease. Why should this be so? What would have to happen for these mosquitoes to significantly affect the spread of malaria?
4. Your friend decides to get tested for HIV. What advice would you give to him regarding options for HIV testing? At what point in time after exposure should these tests be administered to people? Address what the test is detecting and at what time after exposure should this be administered.