Factors Contributing to Parasitic Infections: Clinical Parasitology Lecture

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What is the definition of a definitive host?

Host in which the adult sexual phase of parasite development occurs or sexually mature stage of the parasite lives

Define the term 'Reservoir host'.

Host harboring parasites that are parasitic for humans and from which humans may become infected.

What is the role of a Carrier in the context of parasites?

Parasite-harboring host that is not exhibiting any clinical symptoms but can infect others.

Explain the term Zoonosis.

A parasitic disease in which an animal is normally the host but can also infect humans.

What are Eosinophils and how are they related to parasitism?

Eosinophils are a type of white blood cell that increases in response to parasitic infections.

Define the term 'Vector' in the context of parasites.

A living carrier, such as an arthropod, that transports a pathogenic organism from an infected to a non-infected host.

What are some symptoms associated with parasitic disease processes?

Diarrhea, Fever, Chills, Abdominal Pain

Which major body areas can be affected by parasitic diseases?

Gastrointestinal (GI) tract, Urogenital (UG) tract, Blood and tissue, Liver, Lung, Major organs, Miscellaneous locations

What is a common cellular response in parasitic infections?


What are some treatment options for parasitic infections?

Antiparasitic medications, Change in diet, Vitamin supplements, Fluid replacement, Blood transfusion, Bed rest

What immune response is seen in parasitic infections?

Antibodies belonging to different immunoglobulin classes

What are some common diagnostic methods used in parasitic infections?

Cell-mediated response to parasitic antigens, Eosinophilia

What factors contribute to parasitic infections?

Increased population density, poor sanitation, marginal water sources, poor public health practices, environmental changes affecting vector breeding areas, habits and customs of the people living in endemic regions.

Who are the populations at risk for contracting parasites?

Individuals in underdeveloped areas and countries, refugees, immigrants, visitors from foreign countries, immunocompromised individuals, individuals living in close quarters (e.g., prisons), and children who attend day care centers.

What are the modes of parasite transmission?

Ingestion of contaminated food or drink, hand-to-mouth transfer, insect bite, entry via drilling through the skin, unprotected sexual relations, mouth-to-mouth contact, droplet contamination, eye contact with infected swimming water.

What are the two phases of the parasitic life cycle?

The phase where the parasite is in or on the human body, and the phase where the parasite is independent of the human body.

What does the infective stage of a parasite refer to?

It refers to the morphologic form that invades humans and the maturing stage of the parasite.

What is the significance of epidemiology in parasitic infections?

Epidemiology provides insights into the trends, transmission patterns, and prevalence of parasitic infections.

Explore the factors that contribute to parasitic infections, including increased population density, poor sanitation, environmental changes, and habits of people living in endemic regions. Learn about populations at risk for contracting parasites in a clinical parasitology lecture.

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