microbes of various importance Flashcards
what gram positive cocci is known to cause pyogenic infection
streptococci
what gram positive bacteria are sometimes normal flora
streptococci
what gram positive bacteria is classified by BAP hemolysis
streptococci
what type of hemolysis strep. is divided into groups
beta
beta hemolysis group A
S. pharyngitis - strep throat
beta hemolysis group B
S. agalactiae - mastitis
beta hemolysis group C
S. equi - strangles
what test is specific for S. agalactiae
CAMP
what catalase result indicates staph
positive (bubbles)
what can cause a false positive on a catalase test
BAP transfered to slide
what is performed on a catalase positive test to differentiate staph. sp
coagulase test
what types of staph does a coagulase test differentiate
S. aureus (clots) and S. epidermis (no clot)
what type of toxin does bacillus produce
exotoxin
how should anthrax be diagnosed
blood from the ear vein
what gram positive rod causes bleeding form all orifices and no rigor mortis
bacillus anthracis
what is a common contaminant of silage
Listeria
who is more susceptible to Listeria
herbivores
what does listeria cause
food poisoning
what is the mortality rate of listeria
20%
what are the 2 forms of listeria
visceral and neural
what does visceral listeria result in
abcesses that cover organs
what does neural listeria cause
circling disease in cattle and sheep
what type of ataxis results in circling
unilateral
what gram positive rod is found in pigs and causes diamond skin lesions
erysipelothrix
what is usually found in large animals and will cause diptheria in humans
corynebacterium
what gram positive rod can be pleomorphic
corynebacterium
can change form during growth from cocci to rod
pleomorphic
what is one of the most potent biological toxins known to man
clostridium
what gram positive rod causes tetanus
clostridium
what is the most common bacteria isolated from infected dog and cat bites
pasturella (canis or stomatitis)
what bacteria reside in the reproductive tract of cattle, swine, goats, and humans
brucella
what can exposure to infected rabbits and rodents cause
francisella tularensis
what gram negative rod looks like a comma shaped bacteria and is in undercooked seafood
vibrio
what causes kennel cough
bordetella
what causes dermatitis with blue/green purulent discharge
pseudomonas aeruginosa
what is considered a serious primary pathogen of birds, reptiles, and amphibians
pseudomonas aeruginosa
what has a fruity smell when grown on agar
pseudomonas aeruginosa
what swarms on BAP agar
proteus more, also pseudomonas aeruginosa
what causes red leg
aeromonas
what are known as colaforms
gram negative rods
what is the largest group of potential pathogens
gram negative rods
what type of bacteria are opportunistic
gram negative rods
what does large numbers of gram negative rods in water mean
fecal contamination from farm runoff or sewage
what is acid fast stain used to detect
mycobacterium
what organism can survive phagocytosis
mycobacterium
what organism does not form a cell wall
mycoplasma
what 4 types of infection does gram negative rods cause
gastrointeritis, cepticemia, mastitis, UTI
