write an article on Cryptosporidium a pathogenic eukaryote parasite. What is the natural habitat for this organism? (water, soil, humans, plants, etc.) What clinical significance does this organism have for humans? (What disease/infections does it cause in humans?) What is the mode of transmission to humans? (How do you get an infection with this organism?) What is the worldwide geographic distribution for this organism? (Where is it found, where have there been reported cases or outbreaks lately?)

write an article on Cryptosporidium a pathogenic eukaryote parasite. What is the natural habitat for this organism? (water, soil, humans, plants, etc.) What clinical significance does this organism have for humans? (What disease/infections does it cause in humans?) What is the mode of transmission to humans? (How do you get an infection with this organism?) What is the worldwide geographic distribution for this organism? (Where is it found, where have there been reported cases or outbreaks lately?)

Basic Clinical Laboratory Techniques 6E

6th Edition

ISBN:9781133893943

Author:ESTRIDGE

Publisher:ESTRIDGE

Chapter8: Basic Parasitology

Section8.4: Blood Smears For Parasites Deketion

Problem 11RQ

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In terms of geographical distribution, are parasitic flagellates (e.g., Trypanosoma spp., Leishmania tropica, Giardia lamblia, Trichomonas) cosmopolitan or localized? Explain Discuss the relationship between vector distribution of some parasites and their vectors, if any? Do they exhibit vector specificity?
Which of the following are true regarding parasites in the phylum Apicomplexa? a) they are intracellular parasites b) when they are inside cells, they exist within a parasitophorous vacuole c) the phylum includes the malaria parasites d) movement of the parasites into cells involves the action of an actomyosin motor e) they only reproduce asexually
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Explain what it means to be an obligate intracellular parasite.Name three groups of obligate intracellular parasites.
Write at least one paragraph about the prevention and control of the following parasites: EXAMPLE: Entamoeba histolytica (fecal-oral route of transmission). Plasmodium spp. (transmitted by vector bite). Enterovirus vermicularis (fecal-oral route and autoinfection) Schistosoma haematobium (Skin penetration after water contact) Taenia seginata (ingestion of contaminated food) Ancylostoma duodenale (skin contact with soil)
Which of the following is NOT a true statement? Human Schistosoma infestations are transmitted by direct person-to-person contact without an intermediate host If Schistosoma eggs are circulated in the blood, they can lodge in distant organs Schistosoma adults lay their eggs into the intestine, where they are shed in feces Granulomas form around Schistosoma eggs and can damage internal organs (liver, lungs, etc.) Schistosoma flukes (trematodes) inhabit the intestinal blood vessels for part of their life cycle
Mycorrhizal fungi form obligate symbiotic relationships within plants. They are able to fix N2 into a usable form of nitrogen. In exchange, they receive nutrition from the plant. Which of the following is a true statement concerning mycorrhizal fungi? a) Finding a host plant is not crucial to their survival. b) They are a dominant species. c) They cannot survive without the host plant. d) They are considered plant parasites.
A patient consulted a doctor because of complaints of general weakness, pain in bowels, indigestion. The intestinal infection caused by Protozoa was suspected as a result of laboratory analysis. The intestinal pathogens usually transmitted through the contaminated food, water, hand. They can also be transmitted with the mechanical vectors. There are mechanical and biological vectors of disease pathogens among insects. Mechanical vectors of protozoan diseases are: Select one: a. Glossina palpalis. O b. Wohlfahrtia magnifica. c. Musca domestica. d. Phlebotomus papatasii. e. Pulex irritans.
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CASE #2 A 25-year-old Peace Corps worker has just returned from service in Ethiopia. She experiences a sudden onset of asthma-like symptoms. She has no previous history of asthma. An O & P (ova and parasites) on her stool was part of the normal discharge physical, considering the area of assignment, before being released from the Peace Corps. The sample was processed according to standard laboratory procedures. Two suspicious structures were noted during the direct saline wet preparation. The first of the two structures is noted in form # 1; it measures 50 x 40 um. The second structure is depicted in form #2 and measures 18 um in diameter. Form 1 Form 2 1. Which of the structures is (are) considered a pathogenic parasite(s)? Do the presenting symptoms relate to the O & P findings? If so, explain. Look at the structure depicted in form #1. What key characteristics allow you to identify the organism? Name the organism and its stage. 2. 3.