<prompt> A child is presenting with vomiting and abdominal pain after 5 hours of eating some food. The most likely causative orgonism -Bacillus cereusCl. perfringensCl. botulinumV. cholerae  <response>: Ans. is a i.e., Bacillus cereus Wef: Harrison 18the p. 1088o Food poisoning presenting within 6 hours is seen i Staph aureus, and ii B. cereus.o Cl. botulinum causes constipation not diarrhea and the incubation period is about 18-24 hourso V. cholerae has incubation period 16 hours. OrganismSymptomsFood soureIncubation period1. Staph aureusDiarrhea, Vomiting, No feverVomiting, diarrhea, No feverMeat, dairy poultry productFried rice1-6 hrs2. Bacillus cereus emetic typeIncubation period 8-16 hrs1. Bacillus cereus diarrheal typeDiarrhea, no vomiting, no feverwide range - meat vegetables, cerealsBeef, poultry, legumes2. Cl. perfringensDiarrhea, no vomiting, no feverIncubation period 16 hrs1. V. cholerae2. V. Parahemolyticus3. Salmonella species4. Shigella species5. CampylobacterjejuniDiarrhea, vomiting, No feverDiarrhea, vomiting, feverDiarrhea, fever, rarely vomitingDiarrhea, fever rarely vomitingDiarrhea, fever, no vomitingWide range of foodSea foodBeef, poultry, eggs, dairy productPotato or egg salad, raw vegetablesPoultry raw milk 