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Bacteria is everywhere so yes, it's on animals, in dirt, in the air, on and in food, in and on our bodies and is most often beneficial or benign.
When inflammation is caused by a pathogen, it is termed as infectious inflammation. This can result from the body's immune response to the presence of a pathogen such as bacteria, viruses, or fungi. The inflammatory response is a natural defense mechanism aimed at eliminating the invading pathogen.
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A pathogen is ANY agent that leads to pathology (full stop - end of description). Pathology is damage or disease affecting a living organism. This is most often restricted to the bodies of animals and plants, but, logically, it need not be exclusive to these two kingdoms. There has been an increasing tendency to shorten "pathogenic organism" to "pathogen" and this has progressively distorted the generally accepted meaning and various dictionary definitions of "pathogen". This is evident in the various extant definitions of "pathogen".
Scientists often grow bacteria on agar plates because agar provides a solid surface for bacteria to thrive on. Agar is composed of nutrients that bacteria need to grow, making it an ideal medium for cultivating and studying bacteria in a controlled environment.
One such bacterial disease passed by contaminated drinking water is cholera.The causative agent of cholera is the bacteria Vibrio cholerae.
There is beneficial bacteria in yogurt. That's why people with digestive problems often eat yogurt. The bacteria aids in digestion. The main ingredient in yogurt is milk.
People often associate bacteria with illness because certain harmful bacteria can cause infections and diseases. Additionally, public health campaigns and media coverage frequently highlight these negative aspects, overshadowing the fact that many bacteria are beneficial and essential for processes like digestion and maintaining a healthy immune system. This focus on the harmful effects contributes to a general perception that all bacteria are bad. Consequently, the complexity of the bacterial world is often oversimplified in popular understanding.
Coliform bacteria are a diverse group of bacteria that are commonly found in the environment, including the intestines of humans and other warm-blooded animals. They are not necessarily pathogenic themselves, but their presence is often used as an indicator of potential fecal contamination in water or food. Distinguishing them from specific pathogens may require additional testing to identify the exact type of bacteria present.
The lactose in milk can irritate the symptoms of ulcerative colitis, but generally lactose is not believed to be a central CAUSE of ulcerative colitis. However, "fermented milk" - yogurt - may be beneficial because it contains the bacteria that digest lactose for us. These bacteria should be present in our colon, but as we age they often die out, often by the time we are 15 or 20 yrs. old. Eating yogurt [or other fermented foods] will replenish our gut with these beneficial bacteria and they have already digested most of the lactose in the yogurt.
Dysentery is a generic term meaning "large volume diarrhea, often with blood and/or mucus in the feces". Dysentery can be caused by amoebas, bacteria, viruses or parasites, and the vector changes depending upon the pathogen causing the illness.