Chap 16- Infectious Diseases & Koch's postulates Flashcards
Establishment and multiplication/growth of a microorganism on a surface
colonization
Colonization by a pathogen on or within the body
infection
An infection can be subclinical, meaning
it may cause no symptoms/mild symptoms
An infection that results in disease and prevents the body from functioning normally
infectious disease
subjective effects that are experienced by patient (pain/nausea)
symptoms
objective evidence of infection (can be seen & measured)
signs
Infection in a previously healthy individual; initial infection
primary infection
Infection that occurs along with or immediately following another infection
secondary infection
microbe/virus that cause disease in otherwise healthy person
primary pathogen
microbes that causes disease only when body is immune systems are compromised
oppurtunistic pathogen
ability of a pathogen to overcome body defenses and cause disease; degree of pathogenicity
virulence
Traits of a microbe that promote pathogenicity
virulence factors
infectious diseases that spread from one host to another
communicable/ contagious
Number of microbes sufficient to establish an infection
infectious dose
time between infection to host & onset of signs/symptoms
incubation period