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Leprosy, also known as Hansen's disease (HD), is a long-term infection by the bacteria Mycobacterium leprae or Mycobacterium lepromatosis. [4][7] Infection can lead to damage of the nerves, respiratory tract, skin, and eyes. [4] This nerve damage may result in a lack of ability to feel pain, which can lead to the loss of parts of a person's ...
A couple died in May 2019, in Mongolia, while hunting marmots. [38] Another two people in the province of Inner Mongolia, China, were treated in November 2019 for the disease. [39] Spread of bubonic plague through time in Europe (2nd pandemic) In July 2020, in Bayannur, Inner Mongolia of China, a human case of bubonic plague was reported.
Rare (developed world), relatively common (developing world) [3] Pellagra is a disease caused by a lack of the vitamin niacin (vitamin B 3). [2] Symptoms include inflamed skin, diarrhea, dementia, and sores in the mouth. [1] Areas of the skin exposed to friction and radiation are typically affected first. [1]
Melanoma is the most dangerous type of skin cancer; it develops from the melanin -producing cells known as melanocytes. [1] It typically occurs in the skin, but may rarely occur in the mouth, intestines, or eye (uveal melanoma). [1][2] In women, melanomas most commonly occur on the legs; while in men, on the back. [2]
Skin lesion from anthrax Anthrax skin lesion on the neck Anthrax skin lesion on the face. Cutaneous anthrax, also known as hide-porter's disease, is when anthrax occurs on the skin. It is the most common (>90% of cases) and least dangerous form (low mortality with treatment, 23.7% mortality without).
Plague is an infectious disease caused by the bacterium Yersinia pestis. [ 2 ] Symptoms include fever, weakness and headache. [ 1 ] Usually this begins one to seven days after exposure. [ 2 ] There are three forms of plague, each affecting a different part of the body and causing associated symptoms.
Psoriasis is a long-lasting, noncontagious autoimmune disease characterized by patches of abnormal skin. [4][5] These areas are red, pink, or purple, dry, itchy, and scaly. [8][3] Psoriasis varies in severity from small localized patches to complete body coverage. [3] Injury to the skin can trigger psoriatic skin changes at that spot, which is ...
The term comes from the Greek ἐρυσίπελας (erysípelas), meaning red skin. [5] In animals erysipelas is a disease caused by infection with the bacterium Erysipelothrix rhusiopathiae. In animals it is called Diamond Skin Disease and occurs especially in pigs. Heart valves and skin are affected.