Pathogenecity Of Micro Org Flashcards
What is bacteremia?
It’s a bacteria circulating in the blood stream
Colonization?
Establishment and growth of a micro organism on a body surface
Disease ?
Noticeable impairment of body structure or function
Infectious disease?
Disease caused by an infecting micro organism or virus
In apparent infection?
Infections with no obvious symptoms or signs
Latent infection?
Infection in which the infectious agent is present but not active.
Opportunistic parasite?
It’s an organism that can cause disease only:
- when the hosts immune defenses are weakened
- if the microbes gets into a wrong place
Primary infection
Infection in a previously healthy person.
Secondary infection?
An additional infection that occurs as a result of primary Infection.
Septicemia?
Acute illness caused by an infectious agent
Systematic infection?
Widespread infection through blood or lymph
Toxemia?
Toxin circulating in the bloodstream
Virulence?
Degree of pathogenicity of and organism
Relationship btn micro orga and hosts
The host body constitutes a vast resource. In which the microbes live, feed and reproduce.
- symbiosis: this is the situation in which organisms live close together on more or less permanent basis.
- symbionts: are different organisms that live close together.
Different forms of symbiotic relationship??
Mutualism: both partners benefit
Commensalism: an association in which one benefits but the other remains unharmed.
NB.: over 500 microbial species live in the human gut.
Parasitism: an association in which one organism obtains benefit at the expense of the host.
