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What is the direct life cycle of Giardia?
What is the direct life cycle of Giardia?
- The cysts are passed into the environment and contaminate water supplies, which are then ingested by humans (correct)
- The adult parasites are passed into the environment and then ingested by humans
- The cysts are ingested by animals and then passed into the environment
- The adult parasites are ingested by humans and then passed into the environment
Which of the following is true about hookworms?
Which of the following is true about hookworms?
- They do not cause anemia due to blood loss.
- They invade the skin directly through mouthparts and enzymes, causing damage to the tissues and increased risk of secondary bacterial infection. (correct)
- They do not require a free-living larval stage to complete their life cycle
- They are found in the small intestine and bowel in cold dry climates.
What is the level of protective immunity in endemic communities?
What is the level of protective immunity in endemic communities?
- There is variable protective immunity (correct)
- There is no protective immunity
- There is partial protective immunity
- There is complete protective immunity
What is the effect of hookworms on the body?
What is the effect of hookworms on the body?
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Who is most at risk for serious complications from Giardia infection?
Who is most at risk for serious complications from Giardia infection?
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Which of the following is true about Trichuris trichuria?
Which of the following is true about Trichuris trichuria?
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