Problem
I. Case study I: An influenza outbreak on a cruise ship
i. Explain why contracting influenza does not make you immune to the disease in the future.
ii. How can risks of outbreaks like this be reduced on cruise ships or similar environments, such as schools or workplaces?
iii. What is the difference between the common usage of the term "flu" (such as "stomach flu") and an infection by an influenza virus?
II. Case study II: Bloody diarrhea associated with eating ground beef
i. What is the pathogen most likely to have caused the outbreak of bloody diarrhea? What are the major virulence factors of this pathogen?
ii. How does this pathogen cause hemolytic uremic syndrome (HUS)? What are complications of HUS?
iii. Describe how you would treat those affected by this pathogen and what steps can be taken to prevent getting this disease.
III. Case study III: A cholera outbreak in a refugee camp
i. How is this pathogen being transmitted in the scenario presented in the case study?
ii. Describe how the pathogen causes lethal diarrhea and describe other complicating factors/symptoms that can arise from this infection. What is an appropriate course of treatment for this outbreak?
iii. Describe some of the pathogen's characteristics that aid in its survival in the environment.
IV. Case study IV: An outbreak of sexually transmitted disease
i. List three sexually transmitted infections that could cause this type of outbreak based on the symptoms presented, and briefly describe the characteristics of each pathogen related to each sexually transmitted infection you list.
ii. Based on the laboratory tests performed, diagnose the disease and identify the pathogen.
iii. Describe how the disease progresses if not treated, including typical symptoms.