Exam 6: Protozoa: Sporozoa

Local city water supplies have been sources of parasitic infections. The most common organisms implicated in these events include:

An AIDS patient suffering with chronic diarrhea was tested for intestinal parasites. Among the testing procedures was an acid-fast stain on a direct fecal smear. The smear revealed red-stained, round structures measuring 4 µm in diameter. The most likely parasite is:

Which of the following parasites is able to cause nosocomial infections if "enteric precautions" are not maintained for patients with severe diarrhea?

The malaria parasite species characterized by a single ameboid trophozoite and surrounded by red-stained Schüffner's dots is:

Outbreaks of diarrhea have been caused by a parasite that has been associated with raspberries, strawberries, herbs, and baby lettuces. The most likely parasite is:

The malaria parasite species characterized by a crescent-shaped gametocyte is:

Name the parasite shown in the following image:

Plasmodium vivax and Plasmodium ovale are similar for all of the following EXCEPT both:

A fecal smear was stained using acid-fast reagents. Examination of the smear revealed round, red forms measuring 8 to 10 µm in diameter. The most likely parasite is:

Which of the sporozoa is considered to be indigenous to the United States?

Name the parasite shown in the following image:

Massive hemolysis leading to blackwater fever is a characteristic clinical finding for which of the following parasites?

Name the parasite shown in the following image:

The malaria parasite species characterized by a schizont containing 8 to 12 merozoites is:

The infective stage for Toxoplasma gondii in humans is the:

Babesia spp. infections may be confused with which other parasite?