Parasitic Infections
Comprehensive quiz covering parasitic infections including nematodes, cestodes, trematodes, and protozoans, their life cycles, hosts, diagnostic methods, and clinical manifestations.
Questions
Rodents serve as an intermediate host for which of the following parasitic cestodes?
- Echinococcus granulosus
- Echinococcus multilocularis
- Diphyllobothrium latum
- Taenia saginata
Ring enhancing lesions in HIV patients are associated with
- Toxoplasma gondii
- Cryptosporidium
- Encephalitozoon cuniculi
- Trypanosoma brucei
Which of the following cestodes can lead to megaloblastic anaemia?
- Taenia saginata
- Hymenolepis nana
- Diphyllobothrium latum
- Spirometra spp.
Snails act as an intermediate host for
- nematodes
- protozoans
- cestodes
- trematodes
Infection by which of the following parasites leads to blindness?
- Loa-Loa
- Onchocerca volvulus
- Thelazia callipaeda
- Baylisascaris procyonis
The method of removal of a nematode is speculated to be the source of rod of Ascleplus, the symbol of medicine. Which of the following nematodes is behind this speculation?
- Caenorhabditis elegans
- Dracunculus medinensis
- Dirofilaria immitis
- Myrmeconema neotropicum
Infections by Baylisascaris procyonis are very rare, but very dangerous. This is because it
- causes fatal damage of the liver
- causes blindness
- blocks arteries and causes cardiac arrest
- migrates to the brain and causes damage
Scotch tape technique is used for the diagnosis of
- Toxocara canis
- Enterobius vermicularis
- Trichuris trichuria
- Ascaris lumbricoide
Which of the following animals serves as the most common source of Trichinella species in America?
- Monkey
- Bear
- Sandfly
- Buffalo
Which of the following statements about Trichinella is false?
- Trichinella is known as the smallest human nematode parasite.
- Trichinella is the largest of all intracellular parasites.
- Only the non-encapsulated groups of Trichinella infect the mammalian host.
- Trichinella infections are treated by mebendazole.
On microscopic testing, a rice field farmer with hepatomegaly was found to have sub-terminally spined eggs in his stool. Which of the following protozoans had most probably infected him?
- Schistosoma mansoni
- Schistosoma japonicum
- Schistosoma haematobium
- Non-human Schistosoma
A person was diagnosed with flask-shaped lesions in the large intestine. He complained of violent diarrhoea, bloody stool with pus, flatulance and malodorous gas with abdominal bloating. The etiological agent of his disease is
- Giardia lamblia
- Entamoeba histolytica
- Shigella dysentriae
- Salmonella typhimurium
Which of the following human diseases is caused by Wuchereria bancrofti?
- Elephantiasis nostras
- Elephantiasis tropica
- Podoconiosis
- Genital elephantiasis
Match the parasitic trematodes with their common names
| Trematode | Common name |
| 1. Clonorchis sinensis | a. Sheep liver fluke |
| 2. Fasciola hepatica | b. Lung fluke |
| 3. Fasciolopsis buski | c. Chinese liver fluke |
| 4. Paragonimus westermani | d. Giant intestinal fluke |
- |||
|---|---|
|1. Clonorchis sinensis|b. Lung fluke|
|2. Fasciola hepatica|d. Giant intestinal fluke|
|3. Fasciolopsis buski|a. Sheep liver fluke|
|4. Paragonimus westerman|c. Chinese liver fluke| - |||
|---|---|
|1. Clonorchis sinensis|d. Giant intestinal fluke|
|2. Fasciola hepatica|c. Chinese liver fluke|
|3. Fasciolopsis buski|a. Sheep liver fluke|
|4. Paragonimus westerman|b. Lung fluke| - |||
|---|---|
|1. Clonorchis sinensis|c. Chinese liver fluke|
|2. Fasciola hepatica|a. Sheep liver fluke|
|3. Fasciolopsis buski|d. Giant intestinal fluke|
|4. Paragonimus westerman|b. Lung fluke| - |||
|---|---|
|1. Clonorchis sinensis|d. Giant intestinal fluke|
|2. Fasciola hepatica|b. Lung fluke|
|3. Fasciolopsis buski|c. Chinese liver fluke|
|4. Paragonimus westerman|a. Sheep liver fluke|
Ancylostoma caninum is a dog and cat hookworm. Which of the following human organs is most affected by this organism?
- Intestine
- Nails
- Skin
- Muscles