10 Questions
What is the function of cytokines?
Regulate the intensity and duration of immune responses and blood cells
What is an opportunistic pathogen?
A pathogen that is harmless in normal conditions but becomes harmful in a compromised host
What is a nosocomial infection?
An infection that occurs in hospitals
Who discovered Koch's postulates?
Robert Koch
What is herd immunity?
Immunity in most of a population, limiting outbreaks to sporadic cases
What is the difference between a sign and a symptom?
A sign is measurable, while a symptom is only felt by the patient.
What is the effect of endotoxins released by gram-negative bacteria?
They cause disseminated intravascular coagulation.
What does the ID 50 measure?
The infectious dose for 50% of a sample population.
What is opsonization?
The enhancement of phagocytosis by coating microorganisms with serum proteins.
What type of vaccine contains inactivated toxins produced by a pathogen?
Toxoid vaccine
Learn about the proteins that regulate immune responses and cell-to-cell communication in the body, as well as the concept of opportunistic pathogens. This quiz covers the definitions and characteristics of cytokines and opportunistic pathogens as related to immunology.
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