Praxis 5511

Total Questions: 100 (Free preview: first 5 only)

Question 1 of 100

Which of the following types of pathogens cause influenza in humans?

A. Bacterium
B. Virus Correct
C. Fungus
D. Protozoan

Rationale: Influenza in humans is caused by a virus, specifically the influenza virus, which is known for its ability to mutate and spread rapidly.

Option A, bacterium, is incorrect as bacteria do not cause influenza; they are responsible for different infections, such as strep throat.

Option C, fungus, is also not related to influenza; fungal infections typically affect the lungs but are distinct from viral infections like the flu.

Option D, protozoan, is incorrect as well; protozoa are single-celled organisms that cause diseases like malaria, not influenza. Thus, the only accurate choice is the virus.

Related Questions

Unlock All Praxis 5511 Questions

Subscribe to Premium and get unlimited access to all practice questions, detailed rationales, performance tracking, and full-length exams.

Subscribe to Premium