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Emeric toxin

toxin that induces vomiting

Superantigen

harmful exotoxin that binds to MHC II antigen T-cell and produced inflammatory compounds

AB toxin

toxin composed by the A (active) and B (binding) components when cell is engulfed, A is liberated and damages the cell

Intoxication

Disease that is caused by the ingestion of a food with a toxin (usually bacterial) causing vomiting/diarreah in about 4-8 h, lasts 24-48 h

Exotoxin

Toxin that is released by the bacteria into the medium (intestine) or the food

Gastroenteritis

group of symptoms usually caused by gastrointestinal infection, such as cramps, diarrhea, vomiting, weaknesses, etc

neurotoxin

toxin that affects the nerves or the nervous tissue

foodborne outbreak

2 or more cases of a disease caused by a single food

foodborne infection

Disease caused by the ingestion of a food contaminated with viable bact, that reproduce in the GI tract causing fever, diarrhea, vomiting, cramps

HUS

Hemolytic Uremic Syndrome, caused by verotoxins of EHEC

Enterotoxin

toxin that acts on the GI tract

Humoral Immune System

Defense of the body that includes the production of different immunoglobulins, such as IgG, IgA, IgH

Attachment and Effacement

System by which EPEC colonizes the intestinal tract by attaching to the int. cell with capsule and sloughing off the lining of the intestine

Membrane ruffling

is when the membrane of the intestinal cell forms a pseudopod with actin in order to start the engulfing of bacteria

Pyrogenic

toxin that induces fever

EPEC

Entero Pathogenic E.coli

EHEC

Entero Hemorragic E.coli

"vi" antigen

virulence associated with Salmonella

D value

the decimal reduction time, time required to destroy 90% of the organisms or 1 log cycle

Z value

the degrees Fahrenheit required for the thermal destruction curve to traverse one log cycle

F value

time in minutes required to destroy a given number of the organisms in a specfic food product at 250F (121C)

Infections

Viable cells consumed, relatively long onset for symptoms, relatively long duration, fever common symptom

Intoxications

Viable cells may not be present, quicker onset time, often short duration, no fever

Thermal Death Time (TDT)

time necessary to kill a given number of organisms at a specific temperature.

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