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15 Cards in this Set

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  • Back
micoorganisms
living animals or plants visible only with a microscope
non pathogens
harmless and beneficial MOs
pathogens
MO's that cause illness
aerobic bacteria
requires o2 to live
anaerobic bacteria
exists without o2
viruses
smallest MO causes diseases
fungi
yeasts and molds
rickettsiae
resemble bacteria
protozoans
single celled animals
mycoplasms
MOs that lack a cell wall
helminths
infectiuos worms
prions
does not contains nucleic acid
spore
temp inactive MO can resist heat and destructive chemials and survive w/o moisture
6 step in the chain of infection
1) agent 2) reservior 3) exit route 4) mode of trans 5) port of entry 6)suseptable host
normal flora
good bacteria that the body has