The Chain of Infection

Which of the following is the correct order of the Chain of Infection?

• Pathogen, Reservoir Host, Portal of Exit, Route of Transmission, Portal of Entry, Susceptible Host

• Reservoir Host, Pathogen, Portal of Entry, Route of Transmission, Portal of Exit, Susceptible Host

• Portal of Exit, Pathogen, Reservoir Host, Susceptible Host, Route of Transmission, Portal of Entry

• Susceptible Host, Route of Transmission, Portal of Entry, Pathogen, Reservoir Host, Portal of Exit

Which type of pathogen is described as simple, one-celled organisms that multiply rapidly?

• Virus

• Bacteria

• Fungus

• Protozoa

What are the smallest microorganisms that need a host to reproduce?

• Bacteria

• Virus

• Rickettsiae

• Fungus

Which type of pathogen is described as simple, plant-like organisms that live on dead organic matter?

• Protozoa

• Rickettsiae

• Fungus

• Virus

What is a pathogen?

• A type of plant

• A disease-causing microorganism

• A harmless bacteria

• A type of virus

What is a 'reservoir' in the context of infectious diseases?

• A place where water is stored

• An individual in whom the infectious microorganism resides

• A type of vaccine

• A symptom of illness.

Which of the following is an example of a portal of exit for pathogens?

• Blood vessels

• Saliva

• Hair

• Nails

What is the term used to describe the route of escape for pathogens from the reservoir?

• Portal of Entry

• Portal of Exit

• Transmission Route

• Infection Pathway

What is the 'Route of Transmission' in the context of pathogens?

• The method by which the pathogen gets from the reservoir to the new host

• The method by which the pathogen is created

• The method by which the pathogen is destroyed

• The method by which the pathogen is stored.

Which mode of transmission involves contact with tissues or fluids of an infected individual?

• Fomite

• Airborne

• Direct Contact

• Ingestion