Define prevalence. As of March 13th, the total number of Chlamydia cases reported in Indiana was 6,611. The total population of Indiana is 6,745,350. Calculate the prevalence of Chlamydia in Indiana. Show your work.  

Some pathogens are capable of secreting anti-phagocytic factors (like leukocidins) that help them ______________.

Cell mediated immunity is associated with what type of white blood cell? 

Endotoxins are produced/released by ____________.

_________ contain antigenic fragments, like capsule carbohydrates and viral surface proteins, rather than whole microbes.

Endotoxins are produced/released by ____________.

True or False: Helper T-cells are responsible for activating B-cells and other cells to regulate immune reactions to antigens. 

List two types of T-cells that are involved in the T-cell mediated immune response.  Discuss their specific roles in adaptive immunity. 

Based on the graph below, which of these bacteria would be the most virulent?     

Thoroughly explain what happens during the primary response to an antigen.  Explain why there is a latent period/delay in antibody production during primary response, but not during the secondary response.