Discuss the molecular biology of antigenic shift in influenza viruses and comment on the immunological consequences for the host. Why does antigenic shift prevent the production of a single universally effective vaccine for influenza control? Next, compare antigenic shift to antigenic drift. Which causes the greatest antigenic change? Which creates the biggest problems for vaccine developers? Which can lead to pandemic influenza, and why?
Answer to relevant QuestionsAs the director of your dormitory’s public health advisory group, you are charged to present information on chlamydia, herpes, trichomoniasis (see Chapter 32), and human papillomavirus infection, all STIs. Besides this ...In what ways are yellow fever and dengue fever similar? In what ways do they differ? Devise a plan to prevent the spread of West Nile virus to humans in your community. Identify the relative costs involved in such a plan, both at the individual level and at the community level. Find out if a mosquito ...Contrast the diseases typhoid and salmonellosis. How are they similar and how do they differ? Which is the more serious disease? Contrast leishmaniasis with the two types of trypanosomiasis in terms of causative agents, symptoms, and transmission vectors.
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