Disease Transmission: Vehicle Transmission

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Questions and Answers

What is vehicle transmission?

Transmission of disease via vectors

Transmission of disease via non-living substances (correct)

Transmission of disease via living organisms

Transmission of disease through direct contact

List the most common examples of non-living vehicles.

Air, water, food, various biological products (blood, serum, tissue), fomites.

Infected organism sheds the pathogen: contamination of vehicle may be either from a ___ or _ source.

human, animal

What are the types of vehicle transmission?

Waterborne transmission, airborne transmission, foodborne transmission. Signup and view all the answers

What is waterborne transmission?

Water being contaminated with fecal material that usually carries gastrointestinal diseases. Signup and view all the answers

What type of infection is rotavirus associated with?

Waterborne transmission. Signup and view all the answers

What type of organism causes Giardia infections?

Pathogenic protozoa. Signup and view all the answers

What type of infection is vibrio cholerae associated with?

Waterborne transmission. Signup and view all the answers

What is airborne transmission?

Microscopic particles containing pathogens suspended in the air. Signup and view all the answers

What is tuberculosis?

A bacterial infection of the lungs. Signup and view all the answers

What is influenza?

A viral infection that spreads quickly. Signup and view all the answers

What is foodborne transmission?

Food contaminated with pathogens and/or their toxins. Signup and view all the answers

What is norovirus?

A viral infection that shows up on cruise ships. Signup and view all the answers

What does the term 'vehicle' refer to in disease transmission?

An inanimate material commonly used by humans that can transmit infectious agents. Signup and view all the answers

Give examples of gastrointestinal diseases related to waterborne transmission.

Rotavirus infections, Giardia infections, Vibrio cholerae infections, Salmonellosis. Signup and view all the answers

Give examples of diseases related to airborne transmission.

Tuberculosis, influenza, fungal infections. Signup and view all the answers

Give examples of gastrointestinal diseases related to foodborne transmission.

Salmonella, hepatitis A, norovirus, staphylococcus food poisoning. Signup and view all the answers

Study Notes

Vehicle Transmission Definition

Disease transmission occurs from host to host via non-living substances that transport pathogens.

Common Non-Living Vehicles

Common vehicles include air, water, food, biological products (blood, serum, tissue), and fomites (inanimate objects).

Source of Pathogen in Vehicle Transmission

Pathogens can originate from human or animal sources through contaminated hosts or inanimate objects.
Air-conditioning systems and fungi on walls can also shed pathogens.

Stachybotrys

A mold that mainly grows on wet drywall, causing significant problems in homes.

Types of Vehicle Transmission

Waterborne Transmission
Airborne Transmission
Foodborne Transmission

Waterborne Transmission

Indirect fecal-oral contamination, often linked to gastrointestinal diseases, is prevalent in third-world countries.
Common waterborne diseases include:
- Rotavirus infections
- Giardia infections
- Vibrio cholerae infection
- Salmonellosis

Rotavirus Infection

Viral infection most harmful to infants, typically associated with waterborne transmission.

Giardia Infections

Pathogenic protozoa transmitted zoonotically, frequently found in contaminated water.

Vibrio Cholerae Infection

Bacteria responsible for contamination in sewage and drinking water, leading to severe gastrointestinal illness.

Airborne Transmission

Involves microscopic particles that carry pathogens through the air, traveling more than 1 meter, especially during sneezing.
Commonly associated with respiratory diseases:
- Tuberculosis
- Influenza
- Fungal lung infections

Tuberculosis

A bacterial infection primarily affecting the lungs, transmitted through airborne particles.

Influenza

A viral infection that spreads rapidly, particularly through airborne means.

Foodborne Transmission

Occurs when food is contaminated with pathogens or their toxins, causing gastrointestinal diseases.
Pathogens include:
- Salmonella infections
- Staphylococcus food poisoning
- Hepatitis A
- Norovirus

Norovirus

A viral infection often observed on cruise ships, associated with foodborne transmission.

Definition of Vehicle

An inanimate object, such as air, food, or water, that can transmit infectious agents.

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Description

Explore the concept of vehicle transmission in disease spread through flashcards. Learn how non-living substances act to transport pathogens from hosts and identify common examples like air, water, and food. This quiz is essential for understanding disease transmission dynamics.