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Symptoms start two hours to five days after exposure. [3] Cholera is caused by a number of types of Vibrio cholerae, with some types producing more severe disease than others. [2] It is spread mostly by unsafe water and unsafe food that has been contaminated with human feces containing the bacteria. [2] Undercooked shellfish is a common source. [9]
Cholera is a bacterial infection of the intestines that leads to severe diarrhea and rapid dehydration, "which can quickly become life-threatening without treatment," says Dr. Jason Nagata, a ...
Although Koch was convinced that the bacterium was the cholera pathogen, he could not entirely procure critical evidence that the bacterium produced the symptoms in healthy subjects (an important element in what was later known as Koch's postulates). His experiment on animals using his pure bacteria culture did not lead to the appearance of the ...
Descriptions of cholera are found as early as the 5th century BC in Sanskrit. [4] The study of cholera in England by John Snow, between 1849 and 1854, led to significant advances in the field of epidemiology. [4] [10] Seven large outbreaks have occurred over the last 200 years, with millions of deaths. [11]
Symptoms of the disease appear between 12 hours and 5 days of infection; however, only 10% of infected people show severe symptoms of watery diarrhoea, vomiting and leg cramps. [8] Cholera is diagnosed through a stool test or rectal swab, and today treatment takes the form of an oral rehydration solution (ORS).
The epidemic of cholera, cause unknown and prognosis dire, had reached its peak. [23] Cholera afflicted Mexico's populations in 1833 and 1850, prompting officials to quarantine some populations and fumigate buildings, particularly in major urban centers, but nonetheless the epidemics were disastrous.
Symptoms normally present themselves after 1–3 days, and are usually no longer present after a week. The frequency of urges to defecate, the large volume of liquid feces ejected, and the presence of blood, mucus, or pus depends on the pathogen causing the disease.
Classical swine fever (CSF) or hog cholera (also sometimes called pig plague based on the German word Schweinepest) is a highly contagious disease of swine (Old World and New World pigs). [4] It has been mentioned as a potential bioweapon .