names and descriptions of bacteria Flashcards
Staphylococcus Aureus
mechanism: intoxication
incubation period: 2-6 hours
symptoms: severe vomiting, diarrhoea, abdominal pains and cramps, usually rapid recovery,
Danger of collapse and dehydration
Duration: 6-24 hours
foods involved: cold/ reheated meats. custard/cream filled baked goods, dairy products/sauces.
what is the mechanism of S.aureus
intoxication
how long is the incubation period for S.aureus
2-6 hours
what foods are involved with S.aureus
cold/reheated meats
custard/cream filled baked goods
dairy products and sauces
what are the main symptoms of S.aureus
severe vomiting, diarrhoea, abdominal pains and cramps.
Danger of dehydration and collapse
describe Clostridium Botulinum
mechanism: intoxication
Incubation period: 12-96 hours usually 18-36
symptoms: at FIRST- lassitude, fatigue, headache, dizziness, diarrhoea
LATER- constipation, CNS increasingly affected. disturbance of vision, speech becomes difficult, finally paralysis of respiratory centres and death.
Duration: death in 1-8 days or slow recovery over 6-8 months
Foods involved: low/medium acid canned foods. esp home canned foods.
stale/fermented fish, smoked fish in open/ vacuums packs.
what is the mechanism of Clostridium Botulinium
intoxication
what is the intoxication period of clostridium botulinium
12-96 hours usually 18-36
what are the main symptoms of clostridium botulinum
at first- lassitude, fatigue, headache, dizziness, diarrhoea
THEN LATER- constipation, CNS increasingly affected, disturbance of vision, speech becomes difficult finally paralysis of respiratory centres and death.
what is the duration of clostridium botulinum
death in 1-8 days or slow recovery over 6-8 months
what foods are involved with clostridium botulinum
low medium acid canned foods, especially home canned
stale/fermented fish.
smoked fish in open/vacume packs.
describe Camplylobacter
mechanism: infection
incubation period: 2-11 days
symptoms: most common are diarrhoea and abdominal pain. vomiting less common
Duration: up to 7 days
foods involved: poultry, red meat, selfish, raw milk
name the mechanism of campylobacter
infection
how long is the incubation period of campylobacter
2-11 days
what are the symptoms of campylobacter
most common are: diarrhoea and abdominal pain
vomiting less common
what is the duration of campylobacter
up to 7 days
which foods are associated with campylobacter
poultry, red meat, selfish, raw milk
describe bacillus cerus
mechanism: intoxication incubation period: 1-5 hours symptoms: nausea and vomiting, occasionally diarrhoea, Duration : 6-24 hours food: fried rice, curry, risotto
name the mechanism of Bacillus cereus
intoxication
name the incubation period of bacillus cereus
1-5 hours
name the symptoms of bacillus cereus
nausea, vommiting, occasionally diarrhoea
what is the duration of bacillus cereus infection
6-24 hours
what food is the likely culprit of bacillus cereus infections
fried rice, curry, and risotto
describe salmonella Spp
mechanism: infection
incubation period: 6-36 hours, usually 12-24 hours
symptoms: fever, headache, general aching of limbs, diarrhoea, vommiting
duration: 1-7 days,
20-40 fatal cases each year
foods involved : ANY
what is the mechanism of salmonella spp
infection
what is the incubation period of salmonella spp
6-36 hours usually 12-24
what are the main symptoms of salmonella spp
fever, headache, general aching of limbs, diarrhoea and vomiting
what is the duration of salmonella spp
1-7 days
what foods are involved in salmonella spp infections
any
describe Vibro Parahaemolyticus
mechanism: infection
incubation period: 2-48 hours usually 12-18
symptoms: profuse diarrhoea leading to dehydration, vomiting and fever
duration: 2-5 days
foods involved: raw and cooked seafood especially selfish and fish in general
what mechanism of infection does Vibro parahaemolyticus use
infection
how long is the incubation period of vibe Parahaemolyticus
2-48 hours usually 12-18
What are the main symptoms of Vibro paraheamolyticus
profuse diarrhoea leading to dehydration, vomiting and fever
what is the duration of Vibro parahaemolyticus infection
2-5 days
which foods are associated with vibro Parahaemolyticus
raw and cooked seafood especially shell fish and fish in general.
Describe Clostoridium Perfringens
mechanism: infection (toxin produced in intestines)
incubation period: 8-12 hours
symptoms: abdominal pain, diarrhoea, nausea, rarely vomiting.
duration : 12-24 hours
foods involved: meat, reheated joints in particular, stews, pies
which foods are commonly involved in the infection caused by clostridium perfringens
meat, particularly reheated joints, stews, pies
what is the mechanism of infection used by clostridium perfringens
infection (toxin produced in intestines)
how long is the duration of the infection of clostridium perfringens
12-24 hours
what are the main symptoms of clostridium perfringens
abdominal pain, diarrhoea, nausea, rarely vomiting.
what is the incubation period of clostridium perfringens
8-12 hours
describe norovirus
mechanism infection
incubation period: 24-72 hours
symptoms: diarrhoea, vomitingm abdominal pain, great variation in severity from mild to incapacitating vomiting and diarrhoea
duration: 1-7 days mean 4 days - often person to person spread
foods involved: oysters, mussels, cold buffet foods.
what is the mechanism of NOROVIRUS
infection
what is the incubation period of norovirus
24-72 hours
what is the duration of the norovirus infection
1-7 days mean 4 days
which foods are associated with the norovirus
oysters
mussels
cold buffet foods
what are the main symptoms of norovirus
diarrhoea,
vomiting
abdominal pain
great variations in severity from mild nausea to incaoasiting diarrhoea and vomiting.
describe e.coli 0157:H7
mechanism: infection
incubation period: 3-4 days
symptoms: haemorrhage colitis, sudden severe pain followed by watery diarrhoea nausea and vomiting,
progress to bloody diarrhoea followed by anaemia and acute renal failure.
may cause death in up to 36% susceptible patients
foods involved: undercooked beef products, especially hamburgers, salads, raw milk
what is the mechanism of e.coli 0157:H7
infection
what is the incubation period of coli 0157:H7
3-4 days
what is the foods associated with e.coli 0157:H7
undercooked beef products, hamburgers, salads, raw milk
what are the main symptoms of E.coli 0157:h7
haemorragic colitus, sudden severs pain followed by watery diarrhoea progress to bloody diarrhoea and acute renal failure
describe listeria monocytogenes
mechanism: infection
incubation period: 1-70 days
symptoms: vary according to host from mild influenza type infection to pneumonia, septesemia, meningitis, most serious in pregnant women, very old, very young, immunocompromised
over all 30% mortality
duration: varies according to severity
foods involved: raw chicken, pate, soft cheese, salads, cook-chill foods
what is the mechanism of infection by listeria monocytogenes
infection
what is the incubation period of listeria monocytogenes
1-70 days
what is the main symptoms of listeria monocytogenes
varies according to host from mild influenza type infections to pneumonia, septasemia, meningitis
most serious in pregnant women, very old, very young, immunocompromised patients
over all 30% mortality
what is the duration of listeria monocytogenes
varies according to severity
what foods are associated with listeria monocytogenes
raw chicken, pate, soft cheese, salads, cook-chill foods
