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Questions and Answers
What is the final host for Babesia?
What is the final host for Babesia?
Which of the following is the infective stage for the final host of Sarcocystis?
Which of the following is the infective stage for the final host of Sarcocystis?
What is the mode of infection for Babesia in humans?
What is the mode of infection for Babesia in humans?
Which of these is a diagnostic stage for Babesia in red blood cells?
Which of these is a diagnostic stage for Babesia in red blood cells?
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What characteristic describes the habitat of Sarcocystis?
What characteristic describes the habitat of Sarcocystis?
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Which group of organisms does Babesia belong to?
Which group of organisms does Babesia belong to?
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What is the primary intermediate host for the Sarcocystis life cycle?
What is the primary intermediate host for the Sarcocystis life cycle?
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Which infective stage of Sarcocystis is crucial for the intermediate host?
Which infective stage of Sarcocystis is crucial for the intermediate host?
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Which type of life cycle do Babesia and Sarcocystis primarily follow?
Which type of life cycle do Babesia and Sarcocystis primarily follow?
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Study Notes
Parasitology Lab 4
- Parasitology is the study of parasites
- Protozoa are single-celled eukaryotic organisms in the kingdom Protista
- Protozoa are classified by their motility and other characteristics
- Important protozoa groups include Alveolata, Excavata, and Sarcomastigota
- Alveolata includes Apicomplexa, the organism infecting the red blood cells
- Apicomplexa include Eimeria, Plasmodium, and Babesia
- Babesia parasites infect mammals
- Babesia are intracellular endoparasites that replicate in red blood cells (RBCs)
- Babesia life cycle involves ticks as the vector
- Humans can be infected when ticks bite them, spreading the parasite through blood transfusions
- Typical stages of the life cycle are sporozoites, trophozoites, and merozoites
- Babesia merozoites form tetrads in RBCs
- Final hosts of Babesia are ticks, which transmit the parasite to intermediate hosts (rodents)
- Babesia causes disease in livestock and humans
Sarcocystis
- Sarcocystis is an endoparasite of the intestines
- Final hosts are humans
- Intermediate hosts are sheep, cattle, and pork
- Humans acquire Sarcocystis by consuming uncooked infected beef or pork that contain sarcocysts tissue
- Sarcocysts may be found in the muscles of the final and intermediate hosts
- Sporulated oocysts are diagnostic for Sarcocystis. These can be found in both final and intermediate host faeces for diagnosis.
Classification
- Alveolata is the infrakingdom
- Apicomplexa is the phylum
- Eucoccidiorida, is the order
- Eimeriorina, one of the suborders, has Sarcocystis
- Aconoidasida is another class
- Piroplasmorida is in that class
Laboratory Techniques
- Zinc sulfate flotation is a technique to isolate protozoan cysts and eggs from fecal samples for microscopy.
- Specific protocol is used in the laboratory for this method.
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Description
This quiz focuses on the intricate details of protozoa in parasitology, particularly the significance of groups such as Alveolata, Excavata, and Sarcomastigota. It covers the life cycle and disease implications of the Babesia genus, highlighting its transmission through ticks and impacts on mammals. Dive into the fascinating world of parasites and test your understanding!
