Food poisoning : Overview, causes, symptoms, risk factor,diagnosis and treatment - PowerPoint PPT Presentation

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Food poisoning : Overview, causes, symptoms, risk factor,diagnosis and treatment


Food poisoning is an illness caused by eating contaminated food. It's not usually serious and most people get better within a few days without treatment. In most cases of food poisoning, the food is infected by bacteria, such as salmonella or Escherichia coli (E. coli), or a virus, such as the norovirus. – PowerPoint PPT presentation

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Title: Food poisoning : Overview, causes, symptoms, risk factor,diagnosis and treatment

Food poisoning
Food poisoning
  • Food borne illness, also known as food
    poisoning, is the result of eating contaminated,
    spoiled, or toxic food.
  • Any infectious organisms, including bacteria,
    viruses and parasites, or their toxins are the
    most common causes of food poisoning.
  • Contamination can also occur at home during
    cooking or if left uncovered or not properly

  • Symptoms of food poisoning
  • Certain mild symptoms can include
  • Nausea
  • Vomiting
  • Watery diarrhoea
  • Abdominal pain and cramps
  • Fever
  • Such symptoms usually get treated with time and
    with healthy diet, but in case such serious
    symptoms, patient must show a doctor
  • Frequent episodes of vomiting and inability to
    keep any food

  • Diarrhoea for more than three days
  • Extreme pain or severe abdominal cramping
  • High fever may be higher than 101.5 F (38.6 C)
  • Dehydration
  • Blurry vision, muscle weakness, tingling in the
    arms etc

Diagnosis of food poisoning
  • Diagnosis can be done by knowing the symptoms and
    knowing about what the patient has eaten which
    has lead to food poisoning. But certain test can
    be done such as
  • Blood test- To determine the cause of poisoning
    may be virus or bacteria
  • Stool test- to identify any infectious organism
    in the stool.

Causes of food poisoning
  • Most of the food poisoning is caused by
  • Bacteria- it is most prevalent cause of food
    poisoning. Among them, dangerous bacteria like
    E.coli, listeria and salmonella may be the
    reason. Salmonella are the most dangerous one to
    cause serious food poisoning.
  • Parasites- It is not so common as that of
    bacteria. Toxoplasma is the most often cause of
    food poisoning.
  • Viruses- They are also the higher reason for food
    poisoning. Norovirus, Sapoviru or Astrovirus and
    the viruses who can cause the poisoning.
    Hepatitis A can be transmitted through food which
    can cause serious illness.
  • Sometimes pathogens can also be the reason for
    food poisoning if the food in undercooked or
    eaten raw.

Risk factors of food poisoning
  • Food poisoning can occur to every individual,
    but in case of a person to lower immunity, food
    poisoning can be frequent to them. Such as
  • Older adults- As getting older, the immune
    system get compromised and may not respond as
    quickly and as effectively to infectious
    organisms as to younger people.
  • Pregnant women-During pregnancy, changes in
    metabolism and circulation may increase the risk
    of food poisoning.
  • Infants and young children- As their immune
    systems are not fully developed, they can be more
    prone to food poisoning.
  • People with chronic disease. Having a chronic
    condition People with certain diseases such as
    AIDS, liver disease or undergoing chemotherapy or
    other therapy may be more risked to food

Treatment of food poisoning
  • Mostly food poisoning can be treated without any
    treatment, and by staying in a healthy diet.
  • Diet to have during food poisoning
  • saltine crackers
  • gelatine
  • bananas
  • rice
  • oatmeal
  • chicken broth
  • bland potatoes
  • boiled vegetables
  • toast
  • diluted fruit juices

Treatment of food poisoning
  • sport drinks
  • Caffeine should be avoided as it can irritate the
    digestive tract
  • Certain over the counter medicines such as
    Imodium and Pepto-Bismol may be given to control
    diarrhoea and nausea
  • Intravenous fluids must be taken to control

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