Food Food ContaminationContaminationFoodborne IllnessesFoodborne Illnesses

ContaminationContamination Most foodborne illnesses are caused by Most foodborne illnesses are caused by

contaminantscontaminants Contaminants:Contaminants: substance that may be harmful that substance that may be harmful that

has accidentally gotten into food.has accidentally gotten into food. Microorganisms:Microorganisms: living substance so small living substance so small

that it can only be seen by a microscopethat it can only be seen by a microscope Foods contaminated by microorganisms do not Foods contaminated by microorganisms do not

always look, smell or taste bad.always look, smell or taste bad.

BacteriaBacteria Single celled or non-cellular Single celled or non-cellular

microorganismsmicroorganisms Causes many foodborne illnessesCauses many foodborne illnesses Live almost everywhere, but not all are Live almost everywhere, but not all are

harmfulharmful

Bacterial IllnessesBacterial Illnesses CampylobacteriosisCampylobacteriosis E.ColiE.Coli ListeriosisListeriosis Perfingens poisoningPerfingens poisoning SalmonellosisSalmonellosis ShigellosisShigellosis Vibrio InfectionVibrio Infection 2 others: Botulism and Staphyloccocal 2 others: Botulism and Staphyloccocal

Poisoning Poisoning Caused by toxins produced by the bacteriaCaused by toxins produced by the bacteria

SymptomsSymptoms Vary depending on type of bacteriaVary depending on type of bacteria May take from 30 minutes to 30 days to May take from 30 minutes to 30 days to

develop after eating the fooddevelop after eating the food Common symptoms include: Abdominal Common symptoms include: Abdominal

cramps, diarrhea, fatigue, headache, fever and cramps, diarrhea, fatigue, headache, fever and vomitingvomiting

Botulism Symptoms: Double Vision, Inability to Botulism Symptoms: Double Vision, Inability to swallow, speech difficulty, respiratory paralysis.swallow, speech difficulty, respiratory paralysis. Death rate is high, but it can be treatedDeath rate is high, but it can be treated

ParasitesParasites Microorganisms that need another Microorganisms that need another

organism (host) to liveorganism (host) to live Hogs and red meat are often infected Hogs and red meat are often infected

with Toxoplasma gondiiwith Toxoplasma gondii Cause Toxoplasmosis: damages central Cause Toxoplasmosis: damages central

nervous systemnervous system Caused by eating undercooked meat from Caused by eating undercooked meat from

infected animalsinfected animals

Hepatitis AHepatitis A Raw shellfish can transmit Hepatitus ARaw shellfish can transmit Hepatitus A Begins with nausea, vomiting and feverBegins with nausea, vomiting and fever Severe cases end in deathSevere cases end in death Heat ResistantHeat Resistant The best way to avoid Hepatitis A is to The best way to avoid Hepatitis A is to

buy shellfish from trusted commercial buy shellfish from trusted commercial sourcessources

AssignmentAssignment Complete the Foodborne Illness Match Complete the Foodborne Illness Match

Up.Up.