Parasitology Quiz: Giardiasis and Trichomoniasis

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What is the mode of transmission of Giardiasis?

Sexual intercourse

Vector transmission

Droplet spray

Ingestion of contaminated food and water (correct)

What is the infective stage of Trichomonas vaginalis?

Trophozoite (correct)

Cyst

Cyst & Trophozoite

Mature Quadrinucleate Cyst

What is the habitat of Chilomastix mesnili?

Oral cavity

Large intestine (Cecal Area) (correct)

Urogenital Tract

Small intestine

What is the treatment of choice for invasive amoebiasis?

Metronidazole (B) Signup and view all the answers

What is the diagnostic stage of Entamoeba histolytica?

Cyst & Trophozoite (A) Signup and view all the answers

What is the characteristic CSF finding in S&S?

Elevated WBC with neutrophilic predominance (B) Signup and view all the answers

What is the characteristic of the nucleus of Entamoeba?

Spherical nucleus with a distinct nuclear membrane (A) Signup and view all the answers

Which coccidian is typically associated with immunocompetent individuals having self-limiting infections?

Cystoisospora belli (D) Signup and view all the answers

What is the primary reservoir host for Balantidium coli?

Pig (D) Signup and view all the answers

Which stage of Toxoplasma gondii is responsible for congenital toxoplasmosis?

Tachyzoites (B) Signup and view all the answers

What is the characteristic post-mortem exam finding in S&S?

Hemorrhagic necrosis of the olfactory bulbs (C) Signup and view all the answers

What is the definitive host for Sarcocystis?

Humans (C) Signup and view all the answers

What is the primary stage of the parasite responsible for infecting humans in American trypanosomiasis?

Metacyclic trypomastigote (A) Signup and view all the answers

Which of the following signs is characteristic of Romanas sign in Chagas disease?

Unilateral painless bipalpebral edema (B) Signup and view all the answers

What is the primary organ affected during the chronic phase of Chagas disease?

Heart (D) Signup and view all the answers

Which of the following is NOT a symptom of the acute phase of Chagas disease?

Diarrhea (D) Signup and view all the answers

What is the name of the furuncle-like lesion associated with the site of entry of the parasite in Chagas disease?

Chagoma (D) Signup and view all the answers

What is the name of the insect vector responsible for transmitting American trypanosomiasis?

All of the above (D) Signup and view all the answers

Which of the following is not a characteristic of Raillietina garrisoni?

Definitive host: Humans (B) Signup and view all the answers

What is the mechanism of transmission of Diphyllobothrium latum?

Ingestion of fish with plerocercoid larvae (A) Signup and view all the answers

What is the diagnostic stage of Raillietina garrisoni?

Proglottids (A) Signup and view all the answers

What is the treatment of choice for Diphyllobothriasis?

Praziquantel (A) Signup and view all the answers

What is the result of Diphyllobothriasis in terms of hematological effects?

Hyperchromic, megaloblastic anemia with thrombocytopenia and leukopenia (A) Signup and view all the answers

What is the definitive host of the Heterophyid Fluke Heterophyes heterophyes?

Humans, birds, dogs, and cats (B) Signup and view all the answers

What is the first intermediate host of the Intestinal Fluke Echinostoma ilocanum?

Snails (Hyraulus convexiusculus, Hippeutis umbilicalis) (A) Signup and view all the answers

What is the mode of transmission of the Intestinal Fluke Fasciolopsis buski?

Ingestion of encysted metacercariae from aquatic plants (B) Signup and view all the answers

What is the diagnostic stage of the Intestinal Fluke Echinostoma ilocanum?

Eggs (A) Signup and view all the answers

What is the common name of the Liver Fluke Fasciola spp.?

Common liver fluke/Sheep liver fluke/Temperate liver fluke (B) Signup and view all the answers

What is the treatment of choice for the disease Heterophyiasis?

Praziquantel (C) Signup and view all the answers