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The term waterborne disease is reserved largely for infections that predominantly are transmitted through contact with or consumption of microbially polluted water.Many infections may be transmitted by microbes or parasites that accidentally, possibly as a result of exceptional circumstances, have entered the water.
Water that is intended for drinking should go through some treatment to reduce pathogenic viral and bacterial concentrations. As the density of the human population has increased the incidence of sewage contamination of water has increased as well, thus the risk to humans from pathogenic viruses will increase if precautions are not taken. [3]
Giardiasis is a disease of the small intestine caused by a protist parasite Giardia lamblia. This does not spread but remains confined to the lumen of the small intestine. [47] It can often be asymptomatic, but as often can be indicated by a variety of symptoms. Giardiasis is the most common pathogenic parasitic infection in humans. [48]
Food poisoning, also known as foodborne illness, is a common sickness caused by swallowing food or liquids that contain harmful bacteria, viruses or parasites, and sometimes even chemicals.
Infectious disease may be treated with targeted antibiotics, and inflammatory bowel disease with immunosuppression. Surgery may also be used to treat some causes of bowel obstruction. [5]: 850–862 The normal thickness of the small intestinal wall is 3–5 mm, [8] and 1–5 mm in the large intestine. [9]
Crohn's disease – also known as regional enteritis, it can occur along any surface of the gastrointestinal tract. The most common location for Crohn's disease to manifest, with or without the involvement of the colon or other parts of the GI tract, is in the terminal ileum (the final segment of the small intestine). [5]
This can cause elevated physical temperature, painful spasms of the intestinal muscles , swelling due to fluid leaking from capillaries of the intestine and further tissue damage by the body's immune cells and the chemicals, called cytokines, which are released to fight the infection. The result can be impaired nutrient absorption, excessive ...
Older people naturally have more reactive oxygen species, which is why chronic diseases tend to be more common with age. But what hasn't been known, Young said, is whether there's a single ...