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microbes of importance

Terms in this set (42)

what are gram + cocci?
staph and strep
what can strep cause?
S. agalactiae
S. pharyngitis
what is S. agalactiae cause?
mastitis
what does S. phargynitis cause?
strep throat
-found on skin and throat in humans, and is spread by direct contact
how many species does staph have?
over 40 species
what can S. Aureus produce?
skin wounds, abscesses and can be found in the environment and mastitis
how is mastitis spread?
haemstobia irritans (horn fly)
what are special gram + cocci tests?
coagulase test and CAMP test
what is a coagulase test preformed on?
a catalase positive (gram + cocci)
what is a positive result of a coagulase test indicate?
clot formation
-staph aureus
what does a negative result of a coagulase indicate?
no clot formation
-staph epidermis
what is a CAMP test?
synergistic test between S. aureus and S. agalactiae
what will a CAMP test have on it when its streaked on a BAP?
beta hemolysis
what are examples of gram + rods?
bacillus
listeria
erysipelothrix
corynebacterium
clostridium
what causes anthrax?
Bacillus anthracis
B. anthracis
What does B. anthracis produce?
endotoxins
what are 2 forms of listeria?
viceral and neural
what does the visceral form of listeria cause on organs?
widely disseminated abscesses
what does the neural form of listeria cause?
"circling disease" in cattle and sheep
-animals will be ataxic unilaterally, resulting in circling
what does the neural form of listeria cause in people?
meningitis and encephalitis
what is an example of erysipelothrix?
Rhusiopathiae species
what can Rhusiopathiae species cause?
mild skin dz in people
-more common in pigs
-diamond dz
what does Cl. botulinum cause?
food poisoning (botulism)
what is Cl. tetani cause?
tetanus
what are examples of gram - rods?
escherichia coli
salmonella
klebsiells
arizona
proteus
pasturella
brucella
francisella tularensis
vibrio
bordetella bronchiseptica
pseudomonas aeruginosa
aeromonas
what is E. coli known as?
colioforms
how are humans more likely to become infected with E. coli?
eating contaminated or undercooked hamburger
what is a major reservoir for salmonella?
chickens and their eggs, unpasteurized milk, ground meat and fish
what can salmonella cause?
typhoid fever
-causes diarrhea and a rash
what does klebsiella account for?
a large percent of hospital acquired infections, common contaminant of IV fluids
what does pasturella cause?
snuffles in rabbits
what does brucella cause?
hazard for those in the veterinary field
where does brucella species reside?
in the reproductive tract of cattle, swine, goats and humans
who does francisella tularensis infect?
wild rabbits and rodents
what are some vectors for francisella tularensis?
ticks, mosquitos and deer flies
what does vibrio look like?
comma shaped bacteria (is stilll a rod)
what causes kennel cough?
Bordetella bronchiseptica
What does Pseudomonas aeruginosa cause?
dermatitis with a blue/green purulent discharge
what is a serious primary pathogen of birds, reptiles and amphibians?
pseudomonas aeruginosa
what does pseudomonas swarm on?
a BAP
what are examples of gram - spriochete?
campylobacter
leptospira
what kind of bacteria is campylobacter?
thermophilic and miceoaerophilic bacteria
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