1. Even though genetically engineered mosquitoes might be developed that do not
ID: 302917 • Letter: 1
Question
1. 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?
2. How is hepatitis A different from hepatitis B? Would a vaccine against A protect against B?
3. Former President Ronald Reagan once commented at a press conference that the best way to combat the spread of AIDS in the United States was to prohibit everyone from having sexual contact for 5 years. If it were possible to carry it out, what would be the success of such a program? (Assume it is possible to carry out)
4. What kinds of sex partners present a high risk of transmitting HIV?
Explanation / Answer
2. the hepatitis A(HA) is due to the ingestion of contaminaated food or water whereas the hepatitis B (HB) is result of the parental interaction with infected fluids in the body. the hepatitis B results in a long term or chronic affects such as liver cirrhosis or cancer whereas for HA mostly have mild affect and patient can completely recover with a treatment as it is acute inflammation which is caused due to HA virus. HA is self limiting whereas HB is serious viral infection. yes , as the symptoms are almost same for both so the same vaccine can use used to protect both but with varying dosages in both cases.
3. if such type of program is possible , then it may decrease the spreading rates of the AIDS but it will never become a zero because AIDS have chances to be spread by oral or other contacting methods. Stopping the couples from having sex will definately decrease the number leading to a success but according to my perception practically such type of program won't work out in the environment because of maany associated factors.
4. the HIV risk factors involved are:
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