[Elizabeth_Zeibig]_Clinical_Parasitology__A_Practi(z-lib.org)

CHAPTER 6 Select Sporozoa: Plasmodium and Babesia
157
CASE STUDY 6-2 UNDER THE MICROSCOPE
Cindy, a 20-year old woman, developed a febrile illness 10
days after returning from a weekend hiking expedition in
the New England countryside. She complained of headache,
muscle aches, chills, sweating, and fatigue at the
college infirmary. Laboratory studies included Giemsastained
thick and thin blood smears. Ring and Maltese
cross forms were detected within the red blood cells.
1. What is the diagnosis of Cindy’s infection? (Objectives
6-2, 6-6, 6-13A)
2. How is speciation of the organism causing this infection
best achieved? (Objectives 6-13C)
3. How is this infection transmitted? (Objective 6-13C)
4. What other disease(s) is (are) transmitted by this vector?
(Objective 6-8)
COMPARISON DRAWINGS
Malarial Organisms
Plasmodium Plasmodium Plasmodium Plasmodium
vivax ovale malariae falciparum
Ring Form (early trophozoite)
Developing Trophozoite
Immature Schizont
Continued