Chpt 14 Flashcards
Chapter 14
PATHOGENESIS OF INFECTIOUS DISEASES
means the ability to cause
disease.
Pathogenicity
refers to the steps or
mechanisms involved in the development of a
disease.
Pathogenesis
disease caused by a microbe,
and the microbes that cause infectious diseases are
collectively referred to as pathogens.
infectious disease
synonym for infectious disease
mean colonization by a pathogen
Infection
T or F
A person can be infected with a pathogen, and have an infectious disease.
False
A person can be infected with a pathogen, but not have an infectious disease.
Four Periods or Phases in the Course of an
Infectious Disease
• The incubation period
• The prodromal period
• The period of illness
• The convalescent period
Once an infectious process is initiated, the disease
may remain localized or it may spread; examples are pimples, boils and abscesses
Localized Infection
When the infection spreads throughout the body
Systemic Infections
disease is one that has a rapid onset, and is
usually followed by a relatively rapid recovery
acute disease
examples of acute diseases
measles, mumps, and influenza.
slow onset and lasts a long time
chronic disease
Examples of chronic disease
tuberculosis, leprosy, and syphilis
one that comes on more suddenly
than a chronic disease but less suddenly than an acute disease
subacute disease
Examples of subacute disease
bacterial endocarditis
defined as some evidence of a
disease that is experienced by the patient; something that is subjective
symptom of a disease