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Bacillus anthracis. Cohn 1872. Bacillus anthracis is a gram-positive and rod-shaped bacterium that causes anthrax, a deadly disease to livestock and, occasionally, to humans. It is the only permanent ( obligate) pathogen within the genus Bacillus. Its infection is a type of zoonosis, as it is transmitted from animals to humans. [ 1 ]
Yersinia enterocolitica is a Gram-negative, rod-shaped bacterium, belonging to the family Yersiniaceae. It is motile at temperatures of 22–29° C (72–84 °F ), but becomes nonmotile at normal human body temperature. [ 1][ 2] Y. enterocolitica infection causes the disease yersiniosis, which is an animal-borne disease occurring in humans, as ...
Entamoeba histolytica is an anaerobic parasitic amoebozoan, part of the genus Entamoeba. [ 1] Predominantly infecting humans and other primates causing amoebiasis, E. histolytica is estimated to infect about 35-50 million people worldwide. [ 1] E. histolytica infection is estimated to kill more than 55,000 people each year. [ 2]
Symptoms, when they occur, may include watery blisters in the skin of any location of the body, or in mucous membranes of the mouth, lips, nose, genitals, [ 1 ] or eyes ( herpes simplex keratitis ). [ 7 ] Lesions heal with a scab characteristic of herpetic disease. Sometimes, the viruses cause mild or atypical symptoms during outbreaks.
Black rot, caused by the bacterium Xanthomonas campestris pv. campestris ( Xcc ), is considered the most important and most destructive disease of crucifers, infecting all cultivated varieties of brassicas worldwide. [1] [2] This disease was first described by botanist and entomologist Harrison Garman in Lexington, Kentucky, US in 1889. [3]
Dysentery (UK: / ˈ d ɪ s ən t r i /, [7] US: / ˈ d ɪ s ən ˌ t ɛr i /), [8] historically known as the bloody flux, [9] is a type of gastroenteritis that results in bloody diarrhea. [1] [10] Other symptoms may include fever, abdominal pain, and a feeling of incomplete defecation.
Hookworm infection. Hookworm infection is an infection by a type of intestinal parasite known as a hookworm. [ 1][ 5] Initially, itching and a rash may occur at the site of infection. Those only affected by a few worms may show no symptoms. Those infected by many worms may experience abdominal pain, diarrhea, weight loss, and tiredness.
Legionnaires' disease is a form of atypical pneumonia caused by any species of Legionella bacteria, [ 3] quite often Legionella pneumophila. Signs and symptoms include cough, shortness of breath, high fever, muscle pains, and headaches. [ 2] Nausea, vomiting, and diarrhea may also occur. [ 1] This often begins 2–10 days after exposure.