29 Questions
What is the estimated number of people infected with hookworms worldwide?
1.3 billion
What is the characteristic of an infestation?
Constant number of pathogens
What is the common term used to refer to a variety of parasitic worms?
Helminths
What is a factor that influences the severity of disease?
Infection dose
What is the estimated number of people infected with Ascaris worldwide?
1.5 billion
Which protozoan is transmitted by the ingestion of oocysts from cat faeces?
Toxoplasma gondii
What is the vector responsible for transmitting Trypanosoma in Africa?
Tsetse fly
How many species of Plasmodium infect humans?
4
What is the disease caused by Trypanosoma in South America?
Chagas disease
What stain is used to stain Trophozoites of E.histolytica?
Trichrome
Which protozoan is transmitted by sand flies?
Leishmania
What is the characteristic shape of nematodes?
Vermiform or cylindrical
Which of the following parasites is typically found in the upper intestine of humans?
Fasciolopsis buski
What system is lacking in nematodes?
Circulatory and respiratory systems
What is the result of Fasciola hepatica infection in humans?
All of the above
How are nematodes typically transmitted?
Through the faecal-oral route
How do humans typically acquire Paragonimus westermani infection?
By eating raw or pickled crustaceans
What is the primary cause of anaemia in the tropics according to the text?
Ancylostoma and Necator
Which of the following parasites is not a type of liver fluke?
Fasciolopsis buski
In which climate is Enterobius more prevalent?
Cold and temperate
What is the condition in which Strongyloides infection is more severe?
Immunosuppressed people
In which part of the body do adult Fasciola hepatica trematodes live?
Intra-hepatic bile ducts of the liver
Which of the following is a common parasite of humans and pigs in South-east Asia?
Fasciolopsis buski
What is a characteristic feature of platyhelminths?
Bilateral symmetry
Which of the following is an example of a leaf-like platyhelminth?
Fasciola
What is the common mode of transmission for Taenia saginata and Taenia solium?
Contaminated food
What is a potential complication of Taenia solium infection?
Cysticercosis
What is the disease caused by the larval stages of Echinococcus granulosus and Echinococcus multilocularis?
Hydatid disease
What is the purpose of the Giemsa stain in the context of helminths?
To visualize amastigotes in tissue scrapings
This quiz covers the prevalence and impact of parasitic diseases such as Ascaris, Hookworms, and Malaria on public health. It also explores the morbidities and mortalities caused by these parasites.
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