Food Poisoning Notes PDF

Food poisoning ( Foodborne infections) The disease Salmonellosis Campylobacteriosis The pathogen Non typhoidal Salmonella Campylobacter, Campylobacter jejuni...

Food poisoning ( Foodborne infections) The disease Salmonellosis Campylobacteriosis The pathogen Non typhoidal Salmonella Campylobacter, Campylobacter jejuni responsible for most infections Common Sources  Raw and  Raw and undercooked undercooked poultry and eggs chicken and poultry  Raw and undercooked meat Symptoms  Abdominal pains  Diarrhea, possibly  Vomiting bloody  Diarrhea  Abdominal cramps  Fever.  Fever  Vomiting Incubation period 12 – 24 hours 2 to 11 days Food poisoning ( Foodborne intoxication) The Staphylococcus Bacillus cereus Clostridium Clostridium disease aureus botulinum perfringens - Food born Gram-positive, Gram positive, Gram positive, enterotoxin rod shape, Rod shaped, Rod, spore endo spore- Spore-forming, forming forming, prevents the produce toxins release of the acetylcholine, eading to a flaccid paralysis Commo  Cold  Chinese  Canned  Canned n meats, rice(Em foods food sources  Poultry etic  Preserve  Cooked  Dairy (vomiti d fish meat, products, ng) poultry untreated form)  fish held or raw  Meat at non milk,  vegetab refrigerat  Anything les ed touched by  sauces temperat hand, i.e. The last ures for handled by 3 are long someone (Diarrh periods of infected eal time with form) Staphyloco ccus aureus bacteria;  Sympto  Abdominal Emetic  Vomiting  Nausea; ms pain or (vomiting)  Constipa  Occasiona nausea form: tion l  Watery  Vomitin  Difficulty vomiting; diarrhea g, with  Abdomin  Dehydratio nausea, vision al pain; n abdomi  Difficulty  Watery  Severe nal Swallowi diarrhea vomiting cramps ng  No fever  Low Diarrheal form:  Slurred temperatur  diarrhe speech e. fever is a (non-  clinical not seen bloody presenta watery tion of diarrhe botulism a), is a nausea, flaccid abdomi paralysis nal  Death cramps Incubati 2-7 hours  Emetic 4 hours to 8 days 8 to 24 hours on syndro period me - average 2-3 hours  Diarrho eal syndro me - 8- 12 hours Food borne Intoxication -Bacillus cereus  Emetic (vomiting) form: caused by heat -stable enterotoxin is characterized by a rapid onset (0.5-6 hours)  Diarrheal form: caused by heat-labile enterotoxin (heat -unstable), is characterized by longer onset time (1-18 hours) Food borne Intoxication-Clostridium botulinum  The disease E- coli Norovirus- Food poisoning -  Also called Norwalk-like viruses and caliciviruses  nonbacterial gastroenteritis, food poisoning  Cruise ship illness Common source  Raw meat  Water  Dairy products  Shellfish and salad ingredients are the foods most often infected with the viruses. symptoms  Nausea  Nausea  Abdominal Pain  Vomiting,  Vomiting  Diarrhea, and  Diarrhea abdominal (belly)  Gastroenteritis pain, Diarrhea and  Fever vomiting can  Headache cause  Fatigue dehydration.  low-grade fever  All of the above illnesses are self-limited except Clostridium botulinum, which is treated with Metronidazole or penicillin therapy