Problem 1. Explain why a female who has a history of gonorrhea infections is more likely to have an ectopic pregnancy.
Problem 2. Explain the necessity of producing a new vaccine for each year's ?u season. In your answer, include an explanation of genetic drift, genetic shift, why a new vaccine must be developed each year, and the considerations taken into account when developing a ?u vaccine.
Problem 3. Compare and contrast pneumococcal and mycoplasmal pneumonia (How are they alike and how are they di?erent?) and discuss the etiology and epidemiology of both.