-
what is pathogenic bacteria
bacteria that causes an infection in its host
-
what are the three types of pathogenic bacteria
ubiquitous, spore formers and specific
-
Ubiquitious bacteria consisit of what type of bacteria
staphylcoccus
-
how many of the staphy. species are of potential interest when it comes to food
18
-
Staphyl. was first thought to only create what
cogaulase, TNase
-
Over time what was discoverd that could be also produced by staphy. if it did not produce its original products
enterotoxins
-
what is the habit of ubiquitous bacteria
found aroud openings that are moist
-
Three types of sporformers
clostridium perfringens, clostridium botulinum, bacillus cereus
-
Sporeformers are
gram positive rods
-
is clostridium perfringens anerobic of aerobic
anerobic
-
what are the five types of clostridum perfringen
a b c d and e
-
what types of clostridium perfringens are associated with foodborne illness
a and c
-
how many products does the types of clostridum per. associate with foodborne illness create
7
-
Where is Clostridum perfringens found
- soil
- water
- food
- dust
- spices
- intestinal tract of humans and animals
-
what is need for clostridium per. to caus illness
large number of cells ingested
-
is Clostridum botulinum anerobic or aerobic
anerobic
-
how is clostridium botulinum different from clostridum per.
clostridum botulinum prouduces exotoxin not eneterotoxins
-
where is exotoxins produces
in foods
-
how may reconized types of clostridium botulinum are there
7, A through G
-
which types of clostridium botulinum is associated with human illness
A B E F and G
-
What foods is Clostridum botulinum found in
- canned or vaccuumed sealed foods
- cooked ham
- smoked turkey
- frankfurters
- luncheon meat
- raw chicken, beef, and pork
-
what exotoxin is produced by clostridum botulinum
neurotoxin
-
Bacillus cereus is anerobic or aerobic
aerobic
-
types of targeted of specific pathogens
- listeria
- samonella
- shigella
- e.coil
- vibrio
- yersinia
- camplyobacter
-
Descibe listeria
- gram positive
- non sporforming
- rod
-
where is listeria located
in decaying vegitation and in soil animal feces sweage silage and water
-
wat toxin does listeria produce
listriolysin O.
-
what does listeriolysin O. cause
listeriosis
-
whatcoes listeriosis cause
- gastroenterritis
- speticemia
- meningitis
-
describe salmonella
- gram negitive
- non sporeforming
- rods
-
is salmonella anaerobic or aerobic
facultative anaerobic
-
what are the two species of salmonella
enterica and bongori
-
Of the 2400 serrovars of salmonella how many are made and what are their names
- 5 groups
- II, IIIa, IIIb, IV, VI
-
Where is salmonella found
in the intestinal tract of mammals, birds, reptiles, and insects
-
what toxins are produced by salmonella
enterotoxins and cytotoxins
-
what does the toxins in salmonella cause
the infection know as salmonella
-
is shigella anerobia or aerobic
aerobic
-
descrive shigella
- gram negitive
- non sporeforming
- non motile
- rod
-
what are the types of shigella
- dysenteriae
- flexneri
- boydii
- sonnei
-
what is the most common type of shigella
S. dysenteriae
-
What was actually thought to be part of shigella
E. coli O157:H7
-
how many strand of shigella needed to cause an infection
less than 10 cfu
-
is e. coli anerobic or aerobic
aerobic
-
Describe E.coli
- gram negitive
- non sporeformers
- motile
- rod
-
What are the E.Coli virulence group
-
Eneroaggregative is resposible for
Travelers Darrhea
-
What makes EAggEc aggressive
Plasmd allowing for production of fimbriae
-
EHEC effects what
the large intestines
-
What toxin does EHEC produce
verotoxin
-
What is consider to be a EHEC strain
0157:H7
-
EIEC does not produce what
enterotoxins
-
Where does EIEC multiply
in the epithelial cell
-
what does EPEC destroy
the brush border microvilli
-
ETEC colonize where
in the small intestine
-
vibrio is aerobic or anerobic
Facultative anaerobic
-
describe vibrio
- gram negative
- non sporeforming
- motile
- rod
-
what is the most common Vibrio associated with seafood
V. parahaemolyticus
-
what vibrio is associated with human cholera
V. cholera
-
Gasteroenteritis is due to what
vibrio
-
is yerisinia anerobic of aerobic
faculative aerobic
-
describe yesrinia
- member of family enterobacteriaceae
- gram negitive
- rod
-
what is the most common yersinia
y. pestis
-
yersiniosis is associated with wat foods
vaccumpackaged meats, seafood, vegetables, milk and other food products
-
Camplobacter has a symbiotic relationship with
avian species
-
The Camplobacter symbiotic relationship is due to what
the temprature of the birds body is 42 degrees which is its optimum temp
-
The sever cases of Campylobacter is known as
Gullian Barre syndrome
-
three distinct groups of parasites
- protozoa
- flateworms
- roundworms
-
Characteriscs of parisites
- do not proliferate in food
- presents must be detected directly
- cant grow on culture media
-
Five genera of protozoa
- giardia
- entamoeba
- toxoplasma
- sarcocystis
- cryptosporidium
- cyclospora
-
what is giardia
flagellate protozoa that exist in water
-
Entamoeba induce infection in wat form
abscesses inthe intestinal mucosal cells
-
most common strand of Toxoplasma
toxoplasma gondi
-
Toxoplasmosis mainly occurs in
cats
-
-
Sacrocysts are formed where
the skeletal and cardiac muscles
-
Crytospordium transmition
fecal oral route
-
Cyclospora lacated
the jejunum
-
Two classes of flatworms
- Trematoda (flukes)
- cestoidea (tapeworms)
-
-
Three types of pathenogenic viruses
- hepatitis A virus
- nonviruses
- rotaviruses
-
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