Microbio CH 24

fancasket's version from 2017-02-19 00:47


Question Answer
Infectioncondition in which the body, or part of the body, is invaded by a pathogenic agent that can multiply and produce injury
Contaminationintroducing germs or infectious material into an area or substance
Pathogenic organismscapable of producing disease
True Pathogensreal disease-producing organisms
Opportunistexist as part of the normal microbial flora, can become pathogenic under certain conditions
Pathogenicitythe ability of an organism to cause disease (Y/N)
Virulenceability of the MO to survive or its relative power (0-100%)
attenuationthe reduction of a MO’s virulence by diluting or weakening the microbe to reduce or abolish pathogenicity
Normal Florabacteria which found in or on our bodies on a semi-permanent basis without causing disease.
Drug-fasta MO that is strong enough to resist pharmaceuticals designed to reduce disease


Question Answer
What does Exogeneous mean?Infection comes from outside the host
Example of Exogeneouscommon cold & STDs
What does endogeneous mean?host is the original source of infection
Example of Endogeneousboils on skin, e. coli in unterus
Acute infectionsudden, onset, rapid progression, often with severe symptoms
chronic infectiondelayed onset and slow progression

Types of Diseases

Question Answer
communicabletransmitted directly or indirectly from by individuals
non-communicabledo not spread from person to person
Sporadicoccur occasionally within a geographic region
Endemic diseaseOccur continuously, Specific Region, low mortality
Epidemicattack many people, specific time, specific region
Pandemicattack majority of population in a large region or an epidemic in different parts of the world

chain of infection

Question Answer
3port of exit
4Means of transport
5Port of entry
6: susceptible horse

Factors that influence disease occurance

virulence of the organism
Portal of entry of the pathogen
Number of MO present
Resistance of the host