26 Questions
Which of the following parasites can cause a rash on the foot?
Ancylostoma duodenale
Which of the following infections can cause enlargement of the spleen, liver, and lymph nodes?
Wuchereria bancrofti infection
What is the name of the disease caused by Onchocerca volvulus?
River blindness
Which of the following parasites can cause anemia?
Ascaris lumbricoides
What is the name of the disease caused by Toxocara canis?
Toxocariasis
Which of the following parasites can cause abdominal pain?
Fasciola hepatica
Which of the following is NOT a symptom of Hookworm infection?
Enlarged spleen
Which of the following parasites can cause coughing?
Strongyloides stercoralis
What is a common symptom of Trichinella spp. infection?
Abdominal pain
Which of the following is NOT a symptom of Toxocariasis?
Appendicitis
What is the role of Ixodes spp. in disease transmission?
Vector
Which of the following is a symptom of Hookworm Infection?
Diarrhea
What is a common complication of Onchocerciasis?
Worm cysts in the brain
Which of the following is a symptom of Loiasis?
Itching
What is a symptom of Schistosomiasis?
Diarrhea
What is a complication of Trichinella spp. infection?
Worm cysts in the brain
What is the primary mode of transmission for Loiasis?
Insect bites from deer flies
What is the common name for Schistosomiasis?
Bilharziasis
Which disease is caused by the Onchocerca volvulus parasite?
River blindness
What is the primary symptom of Hookworm Infection?
Itching and skin lesions
What is the causative agent of Toxocariasis?
Toxocara canis
Which of the following diseases is NOT a parasitic helminth disease?
Trichomoniasis
What is the primary site affected by Loiasis?
Subdermal tissues
Which of the following diseases is characterized by blindness?
Onchocerciasis
What is the primary mode of transmission for Schistosomiasis?
Contact with contaminated water
Which of the following diseases is NOT transmitted through insect bites?
Hookworm Infection
Study Notes
Protozoan Diseases
- Leishmaniasis is caused by Leishmania donovani and transmitted through sandfly bites, causing skin sores, fever, weight loss, and enlargement of the spleen and liver.
- Amoebiasis is caused by Entamoeba histolytica and transmitted through ingestion of cysts in contaminated food or water, causing diarrhea, abdominal pain, blood/mucus in stool, and liver abscess.
- Trichomoniasis is caused by Trichomonas vaginalis and transmitted through sexual contact, causing itching, burning during urination, and discharge from the genital tract.
- Trypanosomiasis is caused by Trypanosoma brucei and transmitted through tsetse fly bites, causing fever, headache, joint pains, itching, and later neurological problems and sleep disturbances.
- Toxoplasmosis is caused by Toxoplasma gondii and transmitted through ingestion of oocysts in contaminated food or water, undercooked meat, or cat feces, causing flu-like symptoms and serious complications in immunocompromised individuals and pregnant women.
Parasitic Helminths
Schistosomiasis (Bilharziasis)
- Caused by Schistosoma spp. and transmitted through skin contact with contaminated water, causing cough, difficulty breathing, and enlarged spleen, liver, and lymph nodes.
Pathogenic Helminths
- Loa Loa causes loiasis, transmitted through insect bites, causing localized swelling of the dermis and subdermal tissues, and eye pain as worms migrate.
- Onchocerca volvulus causes river blindness, transmitted through blackfly bites, causing blindness, and swelling around the eyes, retinitis, and impaired vision.
- Toxocara canis causes toxocariasis, transmitted through contaminated soil or feces, causing localized swelling of the dermis and subdermal tissues, and eye pain as worms migrate.
Sites of Infection
- Eyes: Loa Loa, Onchocerca volvulus, and Toxocara canis
- Circulatory and Lymphatic Systems: Schistosoma spp., Wuchereria bancrofti
- Gastrointestinal System: Various helminths, including Ancylostoma duodenale, Ascaris lumbricoides, Clonorchis sinensis, Diphyllobothrium latum, Echinococcus granulosus, Enterobius vermicularis, Fasciola hepatica, Necator americanus, Strongyloides stercoralis, Taenia spp., and Trichinella spp.
Arthropods
- 2 subphyla of interest: Crustacea and Uniramia
- Common arthropod parasites and vectors: Ixodes spp. (ticks), Phlebotomus spp. (sandflies), Glossina spp. (tsetse flies)
This quiz covers different diseases caused by parasites, including leishmaniasis and cryptosporidiosis. It also explores symptoms such as persistent diarrhea and malabsorption.
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