The leading cause of typical community-acquired pneumonia in adults is:

Tetanus toxin leads to which characteristic clinical presentation?

Which bacterial structure provides rigid support and protects the cell from osmotic lysis?

Profuse, frothy green vaginal discharge and a motile protozoan on wet mount are typical of infection with:

Most human pathogens are classified as:

Hemolytic uremic syndrome (HUS) is most strongly associated with infection by:

Which organism requires an acid-fast stain due to its mycolic-acid-rich cell wall?

A chemoheterotroph obtains its energy and carbon from which sources?

According to Erikson, the stage of intimacy vs isolation:

Which of the following is NOT an early sign of life-course-persistent offenders?