How to Avoid Food Poisoning
Symptoms of food poisoning and staphylococcus
How to Avoid Food Poisoning
We've all read reports about undercooked chicken and pork, mayonnaise and eggs left out in the sun too long, seafood that's gone from overripe to bad. What changes these foods from delicious delights to dangerous disasters? Bacteria, that's what.
Bacteria can cause food poisoning in three ways:
- Bacteria that you ingest (in undercooked chicken, for example) can infect the stomach lining.
- Bacteria can create toxins in certain foods (such as mayonnaise left outside), and you ingest the toxins.
- Bacteria that you ingest (in eggs, for example) can produce toxins after they reach the stomach.
The end result of all of these is nausea, vomiting, chills, and extreme discomfort.
When food is left out in the sun, when meats are not cooked through, or when fish spoils, they become breeding grounds for organisms from bacteria to parasites. As the table below shows, food gone bad is bacteria's heaven—and our poison hell.
Before You Put the Band-Aid On
There are three less common food poisonings that can pack a deadly wallop. These include:
Escherichia coli: the culprit behind an outbreak of flu-like symptoms and even death that resulted from eating undercooked fast food burgers.
Bacillus cereus: a contamination often associated with fried rice!
Vibrio parahaemocyticus: a poisoning that results from bad seafood, especially shellfish.
All three of these food poisonings require a trip to the emergency room or the family doctor. Side effects include nausea, chills, flu-like symptoms, and even death.
The following sections cover these three common types of bacteria in greater detail.
Staphylococcus
It might sound like a mouthful—and it is. The most common type of food poisoning is named from the bacteria that contaminates foods such as mayonnaise left out in the sun, cream or custards that are not fresh, soured milk, and unrefrigerated meats. Those foods provide prime growing ground for the staphylococcus bacteria.
Symptoms of this type of bacterial poisoning will occur almost immediately or within only a few hours. They include nausea and vomiting, diarrhea, stomach pain, and weakness.
The best treatment for staphylococcal poisoning is patience. The symptoms will usually clear up (and out) within a few hours. During that time, make sure the ill person is comfortable and near a bathroom. Do not give him or her any pills or medication, but you can give water if it's requested.
Salmonella and botulinum
Salmonella
Despite its name, salmonella doesn't just occur in salmon. It too is a bacteria—a more serious cousin to staphylococcus. Salmonella poisoning occurs in contaminated foods, which might or might not be cooked. It is also linked to poor sanitary conditions. (In other words, avoid food stores swarming with insects, heat, and cooks with dirty hands.)
Ouch!
Salmonella bacteria is most prevalent in undercooked or improperly cleaned or stored poultry, pork, beef, and eggs.
Symptoms of salmonella poisoning usually surface about eight hours after a person eats the bad food. The symptoms are very similar to those of staphylococcal poisoning, but they are much more severe. They include:
- Nausea and vomiting
- Fever
- Chills
- Severe diarrhea and abdominal cramps
- Flu-like symptoms
First Things First
How can you tell if the food in a can might have been contaminated? If a can is battered, swollen at the top or bottom, or sold after the “best used by” date, or if it exudes a strong odor when it's opened, you can bet it's probably bad. You should live by the old saying, “When in doubt, throw it out!”
If you think someone might have salmonella poisoning, seek medical help immediately. Then make the person as comfortable as possible. Give him or her only water if requested.
Botulinum
The most devious food poisoning, botulism, is also the most deadly. It is an illness caused by the botulinum bacteria. Symptoms usually don't appear until two days after ingestion—and it can sometimes be difficult to trace back to the contaminated food. Botulism is caused by contamination of canned goods; the botulinum bacteria thrives on improperly packaged food and food that is used after it has “turned bad.” New studies are also revealing that botulism can occur in gourmet hand-flavored bottled oils, in which whole slivers of peppers or herbs are placed in a glass bottle along with the cooking oil.
Before You Put the Band-Aid On
The more acidic the canned food is, the less likely the chance that botulinum bacteria can grow in it. The acid kills the enemy before it has time to get a “podhold.” Thus most canned goods containing tomatoes (such as tomato soup, stewed tomatoes, tomato sauce, and tomato juice) are probably going to be safe.
Botulinum bacteria produces symptoms all its own:
- Blurriness or dim vision
- Double vision
- Heavy eyelids
- Difficulty breathing
- Severe fatigue
- Inability to swallow
- Garbled speech
If any of these symptoms occur, seek medical assistance immediately. Try to retrace the ill person's routine over the past two days and find the culprit. Finding the food can help the emergency team provide the correct treatment. If the ill person cannot remember what she consumed or if she is too sick to talk, check her appointment book, call her office, and look in the garbage can.
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