Assessments in Module 3 include one open response item, two multiple-choice questions and a formative assessment task.

1. Describe the factors (biological and human behaviors) that my cause an outbreak of a viral disease to develop into an epidemic or not. Use your understandings from the timeline and readings in this module.
   
   • Mode of transmission of virus: direct and indirect contact (Ebola, HIV, measles, smallpox, influenza)
   • Diseases that are spread by insect vectors: if the vectors are abundant and are found in close proximity to humans (Zika, Bubonic plague, typhus)
   • Human behavior: that result in increases in the density of vectors, such as careless disposal of trash; poor sanitation leading to contaminated water; careless food preparation; burial practices (Zika, Cholera, Salmonella, SARS, Ebola)
2. The best treatment for an unknown viral disease is
   
   1. Antibiotic
   2. Bedrest
   3. Exercise
   4. Vaccine
3. In order to multiply, a virus must
   
   1. Conjugate with another virus
   2. Invade a host cell
   3. Manufacture extra food
   4. Remain hidden

Formative Assessment

Students create a fictitious viral disease with symptoms, causative agent and mode of transmission and present it and have the class decide whether it is contagious or not.