BLACK DISEASE Meaning and
Definition
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Black disease, also known as Infectious Necrotic Hepatitis, is a severe and highly fatal disease that primarily affects livestock, especially sheep, cattle, and occasionally other ruminants. It is caused by the bacteria Clostridium novyi, specifically the type B variant. The disease manifests as acute hepatitis and is often marked by sudden death in affected animals.
Black disease is characterized by the rapid destruction of liver tissue and the release of toxins into the bloodstream. The infection most commonly occurs following liver damage caused by liver fluke parasites, such as Fasciola hepatica, or due to damage caused by liver fluke larvae migrating through the liver tissue. Once infected, the bacteria proliferate within the damaged liver, leading to liver necrosis and hemorrhage, which gives the disease its characteristic name.
Clinical signs of black disease may include fever, loss of appetite, lethargy, abdominal pain, icterus (yellowing of the skin and mucous membranes), and sudden death. The disease is usually diagnosed post-mortem through necropsy examination and identification of typical liver lesions.
Prevention and control of black disease mainly involve effective management practices, including deworming and parasite control, vaccination against various liver flukes, and providing a low-stress environment for livestock. Vaccination with specific vaccines containing killed Clostridium novyi type B bacteria has shown effectiveness in reducing the incidence of black disease.
Prompt treatment with antibiotics and supportive care may be attempted for affected animals, although the prognosis is often poor. Black disease poses a significant economic threat to livestock industries due to loss of valuable animals and potential for spreading to other susceptible animals in the herd.
Common Misspellings for BLACK DISEASE
- vlack disease
- nlack disease
- hlack disease
- glack disease
- bkack disease
- bpack disease
- boack disease
- blzck disease
- blsck disease
- blwck disease
- blqck disease
- blaxk disease
- blavk disease
- blafk disease
- bladk disease
- blacj disease
- blacm disease
- blacl disease
- blaco disease
Etymology of BLACK DISEASE
The term "black disease" is typically used to refer to a medical condition known as gangrene. The etymology of the word "black disease" relates to its visual appearance, as gangrene often causes tissue to darken and turn black.
The word "gangrene" itself originated from the Latin word "gangraena", which has its roots in the Greek word "gangraina". "Gangraina" originally referred to a form of ulcer or eating sore. The Latin and Greek terms then became intertwined with variations of "gangrene" appearing in various European languages.
It's important to note that "black disease" may occasionally have other contexts or meanings. However, in the medical sense, it is often synonymous with gangrene, highlighting the black discoloration associated with this condition.
Similar spelling words for BLACK DISEASE
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