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Questions and Answers
What is the most common symptom associated with Ascaris lumbricoides infection?
What is the most common symptom associated with Ascaris lumbricoides infection?
- Bloody diarrhea (correct)
- Nausea and vomiting
- Joint pain
- Hypertension
Where do the larvae of Necator americanus migrate to in the human body?
Where do the larvae of Necator americanus migrate to in the human body?
- Kidneys
- Brain
- Liver
- Lungs (correct)
How can humans get infected with Ascaris lumbricoides?
How can humans get infected with Ascaris lumbricoides?
- Skin contact with contaminated water
- Ingestion of eggs from infected soil or food (correct)
- Through mosquito bites
- Inhalation of airborne spores
What is a key preventive measure for avoiding Necator americanus infection?
What is a key preventive measure for avoiding Necator americanus infection?
Which medication is commonly used to treat Ascaris lumbricoides infection?
Which medication is commonly used to treat Ascaris lumbricoides infection?
What is a typical symptom of intense allergic itching due to hookworm penetration?
What is a typical symptom of intense allergic itching due to hookworm penetration?
What is the main mode of transmission of Hymenolepis nana?
What is the main mode of transmission of Hymenolepis nana?
What is a common symptom of Hymenolepis nana infection?
What is a common symptom of Hymenolepis nana infection?
What is the definitive host for Hymenolepis nana?
What is the definitive host for Hymenolepis nana?
Which treatment is NOT mentioned for infections with Hymenolepis nana?
Which treatment is NOT mentioned for infections with Hymenolepis nana?
What is the infective stage of Hymenolepis nana?
What is the infective stage of Hymenolepis nana?
How can infections with Hymenolepis nana be prevented?
How can infections with Hymenolepis nana be prevented?
What is the diagnostic stage for Enterobius vermicularis infection?
What is the diagnostic stage for Enterobius vermicularis infection?
Which of the following is NOT a symptom of Enterobius vermicularis infection?
Which of the following is NOT a symptom of Enterobius vermicularis infection?
How is Trichuris trichiura mainly transmitted to humans?
How is Trichuris trichiura mainly transmitted to humans?
Which of the following is a common preventive measure for Enterobius vermicularis infection?
Which of the following is a common preventive measure for Enterobius vermicularis infection?
What is the definitive host for Trichuris trichiura?
What is the definitive host for Trichuris trichiura?
Which laboratory diagnosis method is used for detecting Trichuris trichiura infection?
Which laboratory diagnosis method is used for detecting Trichuris trichiura infection?
Which larval stage is ingested by humans in Diphyllobothrium latum infection?
Which larval stage is ingested by humans in Diphyllobothrium latum infection?
What are the common symptoms associated with diphyllobothriasis?
What are the common symptoms associated with diphyllobothriasis?
How is Fasciolopsis buski commonly known?
How is Fasciolopsis buski commonly known?
What is the infective stage of Fasciola hepatica in the definitive host?
What is the infective stage of Fasciola hepatica in the definitive host?
Which species causes Chinese or oriental liver fluke infection?
Which species causes Chinese or oriental liver fluke infection?
What is the main diagnostic stage used for identifying Fasciolopsis buski infections?
What is the main diagnostic stage used for identifying Fasciolopsis buski infections?
Which parasite causes Katayama syndrome?
Which parasite causes Katayama syndrome?
Where are the adult worms of Schistosoma haematobium found in humans?
Where are the adult worms of Schistosoma haematobium found in humans?
What is the treatment for immature larval forms of Schistosoma japonicum?
What is the treatment for immature larval forms of Schistosoma japonicum?
What is the main symptom of chronic intestinal form caused by Schistosoma haematobium?
What is the main symptom of chronic intestinal form caused by Schistosoma haematobium?
Which stage of the parasite burrows into the capillary bed of feet, legs, or arms during skin penetration?
Which stage of the parasite burrows into the capillary bed of feet, legs, or arms during skin penetration?
What is the recommended control measure for preventing Schistosomiasis transmission?
What is the recommended control measure for preventing Schistosomiasis transmission?
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Study Notes
Ascaris lumbricoides
- Most common symptom: Abdominal pain or discomfort.
- Infection route: Humans become infected by ingesting eggs from contaminated soil or food.
- Treatment: Commonly treated with medications like albendazole.
Necator americanus
- Larvae migration: After skin penetration, they migrate to the lungs before traveling to the intestines.
- Prevention: Key preventive measure is wearing shoes in areas prone to contamination.
Hymenolepis nana
- Main transmission: Usually transmitted via ingestion of infected rodent feces or contaminated food.
- Symptoms: Common symptoms include abdominal pain and diarrhea.
- Definitive host: Humans serve as the definitive host.
- Infective stage: The eggs are the infective stage and can be ingested.
- Prevention: Avoiding contact with contaminated areas and practicing good hygiene.
Enterobius vermicularis
- Diagnostic stage: Detection is typically through scotch tape analysis of eggs around the anal area.
- Symptoms: Non-symptomatic cases are often reported, especially in children.
- Prevention: Common preventive measures include handwashing and keeping nails short.
Trichuris trichiura
- Transmission: Primarily transmitted through ingestion of eggs from soil or food contaminated with feces.
- Definitive host: Humans are the definitive host.
- Diagnosis method: Laboratory diagnosis is conducted via stool examination for eggs.
Diphyllobothrium latum
- Larval stage: The plerocercoid larva is ingested by humans through undercooked or raw fish.
- Symptoms: Common symptoms include weight loss, abdominal discomfort, and diarrhea.
Fasciolopsis buski and Fasciola hepatica
- Common name for Fasciolopsis buski: Giant intestinal fluke.
- Infective stage: The metacercaria is the infective stage for Fasciola hepatica in the definitive host.
- Diagnostic stage: Eggs in feces are used for identifying Fasciolopsis buski infections.
Schistosoma spp.
- Katayama syndrome: Caused by Schistosoma japonicum infection.
- Adult worms location: Schistosoma haematobium adult worms are found in the urinary bladder.
- Treatment: For immature larval forms of Schistosoma japonicum, praziquantel is commonly used.
- Chronic symptoms: Chronic intestinal form caused by Schistosoma haematobium may lead to hematuria.
- Skin penetration: The cercaria stage penetrates the skin and enters the capillary bed of feet, legs, or arms.
- Control measures: Recommended control includes public health measures, education, and sanitation to prevent transmission.
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