Why is producing a vaccine to treat African sleeping sickness nearly impossible? Choose one: A. The vector of transmission is hard to grow in captivity for study. B. The trypanosome does not cause an antibody response. C. The disease is expressed only in humans and experimental subjects are hard to find. D. Trypanosomes each have more than a thousand genes for antigens but express only one at a time.
Added by Nicole G.
Close
Step 1
Step 1: African sleeping sickness is caused by a parasite called Trypanosoma brucei, which is transmitted through the bite of the tsetse fly. Show more…
Show all steps
Your feedback will help us improve your experience
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Madhur L.
Why have vaccines been relatively unsuccessful in stopping AIDS?
Which of these statements concerning African sleeping sickness is true? a) It is transmitted by a species of biting mosquito. b) It is a threat to visitors to tropical Africa. c) The onset of sleepiness is usually within 2 weeks of contracting the disease. d) It is caused by free-living protozoa. e) Distribution of the disease is determined mainly by the distribution of standing water.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD