Micropara 4: Normal Human Microbial Flora Flashcards
one organism benefits the
other is harmed
Parasitism
both organisms benefit
Mutualism
microbe able to produce disease
Pathogens
one organism benefits,
the other is unaffected
Commensalism
body wide
Systemic
host tissues affected
Disease
microbe overcomes host defense/barriers
Infection
degree of potency
Virulence
host with microbe, but no symptoms
Carrier
microbe responsible for disease
Etiologic Agent
low to moderately virulent pathogen: if able to gain access it will cause disease
Opportunists
microbe that uses dead material (i.e.
yeast)
Saprophyte
transmission between hosts occurs
Communicable
natural source of the microbe:
environment, carriers, infected, animals
Disease reservoir
molecule capable of producing an immune
response
Antigen
is an organism that harbors another organism
Host
means “living together”
Symbiosis
refers to the presence of
microorganisms
Contamination, Infection, and Disease Contamination
pathogens invade the body
Infection
pathogens or other factors disturb the state of health such that the body can not perform is normal functions
Disease
refers to the presence of worms or arthropods in or on the body
Infestation
How long does it take for normal flora to fully establish?
approximately 1 year
18 months
these are microorganisms that normally live in and on body without producing harm
Normal Flora
always present
Resident flora
only present for a short period of time
Transient flora
normal flora found in:
colon, throat, vagina
Bacteroides species
normal flora found in:
colon, mouth, vagina
Candida albicans | Lactobacillus species
normal flora found in:
colon
Clostridium species | Enterococcus faecalis
normal flora found in:
nasopharynx, skin, vagina
Corynebacterium species
diphtheroids
normal flora found in:
colon, outer urethra, vagina
Escherichia coli and other coliforms
normal flora found in:
vagina
Gardnerella vaginalis
normal flora found in:
conjunctiva, nasopharynx
Haemophilus species
normal flora found in:
mouth, nasopharynx
Neisseria species|Viridans Streptococci
normal flora found in:
skin
Propionibacterium acnes
normal flora found in:
colon, skin
Pseudomonas aeruginosa
normal flora found in:
nose, skin
Staphylococcus aureus
normal flora found in:
mouth, nose, skin, urethra, vagina
Staphylococcus epidermidis
normal flora found in:
mouth, nasopharynx
Viridans streptococci
What are the bacterial diseases?
- Pulmonary tuberculosis
- Pneumonia
- Pulmonary anthrax
- Legionellosis
- Whooping cough
- Diphtheria
pathogen of pulmonary tuberculosis
Mycobacterium Tuberculosis
pathogen of pneumonia
Klebsiella pneumoniae
pathogen of pulmonary anthrax
Bacillus anthracis
pathogen of legionellosis
Legionella spp.
pathogen of whooping cough
Bordetella pertussis
pathogen of diptheria
Cornebacterium diptheriae
What are the fungal diseases?
- Aspergillosis
- Coccidioidomycosis
pathogen of aspergillosis
aspergillus fumigatus
pathogen of coccidioidomycosis
coccidioides immitis
What are the viral diseases?
- Influenza
- Hantavirus pulmonary syndrome
- Hepatitis
- Chickenpox
- Common cold
- Dengue fever
pathogen of influenza
Influenza virus
pathogen of hantavirus pulmonary syndrome
Hantavirus
pathogen of hepatitis
Hepatitis virus
pathogen of Chickenpox
Herpesvirus
pathogen of common cold
Picornavirus
pathogen of dengue fever
Flavivirus
reservoir for infection of others
Typhoid Mary