Most infectious diseases are bacterial infections in small amounts (or as small as 2–10 micrograms per kg of body weight) per period . The normal daily threshold for infectious disease is usually 100-200 micrograms per kg of body weight per period. In an elderly person with compromised immune systems, the daily threshold for infectious diseases may be as low as 1–1,000 micrograms per kg of body weight per period.
However, occasionally a person with influenza or food poisoning is able to infect themselves even with much lower levels than those present in their usual diet. A food-borne illness can be defined as any illness that results in sickness or illness-like symptoms caused by contaminated food, water, etc.
However in severe cases of food poisoning, a person may be able to infect hundreds or thousands of others. In general (all infectious diseases), a 100 micrograms per kg body weight level will always result in the presence of bacteria in at least one part of the stomach, intestines or colon. It does not mean that these bacteria have entered the person's bloodstream, nor is it an indication that the organism has become fully established in the gut (yet). In severe cases of food poisoning, these bacteria may be present in the small intestines, or be present in large amounts (as the result of an ingestion of contaminated food or water).
Foodborne gastroenteritis commonly occurs in younger people, including babies, young adults, teenagers, adults and older people. It is rare in infants and adults.
Is a gastroenteritis preventable?
Although it is sometimes reported that food poisoning can be prevented by eating the right foods, this is not true in any significant degree. If anyone is eating a diet that includes the following foods:
In addition to these foods, any of the following may be a source of bacteria:
Uncooked bread, pasta, rice
Milk and water contaminated with undigested cereal grains.
In the case of undigested food, many people do not realize that they have food poisoning and assume they are being poisoned by raw eggs (although they should consult their doctor about that). Others consume food at restaurants that are unhygienic and contaminated, or by people who are using open flame on un-sanitized surface cookware.
The best solution is to limit the sources of bacteria in the home.
Are there natural cures for gastroenteritis?
There are several natural remedies that are commonly used for most gastrointestinal tract infections and conditions in general. They all involve combining various herbs and remedies, though some contain other ingredients to be aware of.