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• An engineering college has 5 hostels, each having
  a separate mess.
• On a particular day between 1 am & 5 am, few
  st...
•   What is the probable diagnosis?




    Probable diagnosis is food poisoning
    Probable organism is staphylococcus a...
2. How do you proceed to find out the incriminated
   food?


a)Secure complete list of people involved & their
   history...
b) Information collected from all those involved is
             summarized as follows
c) Attack rates are calculated from the collected
  information
• The food item likely to be responsible for outbreak is
 ...
d). Laboratory investigation:
 to incriminate the causative agent from stool, vomit, or
  remnants of food by inoculating...
Blood for antibodies:
• is useful for retrospective diagnosis

• Environmental study:


• includes inspection of the eatin...
3.Why was it that some students were spared to
  from disease?


Some of the students may not have been affected because:
...
4.What are the preventive measures that could be
  undertaken to prevent such a problem in the
  community

A . Food sanit...
Food Poisoning Final
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Food Poisoning Final

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By Dr.Nithin on 14th July 09

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Food Poisoning Final

  1. 1. • An engineering college has 5 hostels, each having a separate mess. • On a particular day between 1 am & 5 am, few students who ate from one mess were admitted in the casualty with complaints of vomiting & a few of them also developed diarrhoea. • On enquiry, it was learnt that some of the students who ate from the same mess did not suffer. • The food items that were served for dinner were chapathi, chicken curry, fish fry, peas paneer &
  2. 2. • What is the probable diagnosis? Probable diagnosis is food poisoning Probable organism is staphylococcus aureus (short incubation period, sudden onset vomiting, diarrhoea)
  3. 3. 2. How do you proceed to find out the incriminated food? a)Secure complete list of people involved & their history –  questionnaire concerning the food eaten during the previous 2 days  place of consumption  time of onset of symptoms  symptoms of illness in order of occurrence  personal data & any other helpful information.
  4. 4. b) Information collected from all those involved is summarized as follows
  5. 5. c) Attack rates are calculated from the collected information • The food item likely to be responsible for outbreak is the one, consumption of which is associated with highest attack rate
  6. 6. d). Laboratory investigation:  to incriminate the causative agent from stool, vomit, or remnants of food by inoculating into appropriate media  to determine the total number of bacteria  to determine the relative number of each kind of organism involved  stool samples of kitchen employees & food handlers should also be investigated 
  7. 7. Blood for antibodies: • is useful for retrospective diagnosis • Environmental study: • includes inspection of the eating places, kitchens & questioning of food handlers regarding food preparation • Data analysis: • the data should be analysed according to descriptive methods of time, place & person distribution
  8. 8. 3.Why was it that some students were spared to from disease? Some of the students may not have been affected because:  They did not eat the incriminated food, or they may have eaten so little of it that it was insufficient to cause illness  Individual resistance also plays a role
  9. 9. 4.What are the preventive measures that could be undertaken to prevent such a problem in the community A . Food sanitation B. Refrigeration  Meat inspection  Proper temperature control  Personal hygiene  Foods not eaten  Food handlers – medical immediately should be kept inspection in cold storage  Food handling techniques  Cook & eat the same day is  Sanitary improvements a golden rule  Health education C. Surveillance
  • nehabansal2626

    Jun. 15, 2018

By Dr.Nithin on 14th July 09

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