Infectious Diseases: Pathogens, Transmission, and Prevention

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Questions and Answers

What term is used to describe any organism that causes disease?

Host
Toxin
Microorganism
Pathogen (correct)

What is the term for the ability of a pathogen to cause disease?

Pathogenicity (correct)
Toxicity
Infectivity
Virulence

What is the term for a larger organism that supports the survival and growth of a smaller organism?

Pathogen
Microorganism
Parasite
Host (correct)

When a host has a pathogen growing and multiplying within or on it, it is said to have:

An infection (B) Signup and view all the answers

What is the term for any change from a state of health in which part or all of the host body is not capable of carrying on its normal functions due to the presence of a pathogen or its products?

Infectious disease (C) Signup and view all the answers

What is the main difference between pathogenicity and virulence?

Pathogenicity refers to the ability of a microorganism to cause disease, while virulence refers to the severity of the disease caused by the microorganism. (C) Signup and view all the answers

What distinguishes an emerging infectious disease (EID) from a pandemic?

An EID is a newly appeared disease or one rapidly increasing in incidence, while a pandemic is a global outbreak affecting a large proportion of the population. (D) Signup and view all the answers

What is the role of infection prevention and control (IPC)?

To break the chain of infection and prevent the spread of infectious diseases within communities and healthcare settings. (D) Signup and view all the answers

What characterizes zoonotic diseases?

They are naturally transmissible from vertebrates to humans and can account for a large proportion of new and existing infectious diseases in humans. (A) Signup and view all the answers