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Hepatitis E. Hepatitis E is inflammation of the liver caused by infection with the hepatitis E virus (HEV); [4][5] it is a type of viral hepatitis. [6] Hepatitis E has mainly a fecal-oral transmission route that is similar to hepatitis A, although the viruses are unrelated. [7][8][9] HEV is a positive-sense, single-stranded, nonenveloped, RNA ...
Species: Orthohepevirus A. Synonyms [1] Hepatitis E virus. The hepatitis E virus (HEV) is the causative agent of hepatitis E. It is of the species Orthohepevirus A.[a][2][1] Globally, approximately 939 million corresponding to 1 in 8 individuals have ever experienced HEV infection. About 15–110 million individuals have recent or ongoing HEV ...
Hepatitis. Alcoholic hepatitis as seen with a microscope, showing fatty changes (white circles), remnants of dead liver cells, and Mallory bodies (twisted-rope shaped inclusions within some liver cells). (H&E stain) Specialty. Infectious disease, gastroenterology, hepatology. Symptoms.
Hepadnaviridae[a] is a family of viruses. [2] Humans, apes, and birds serve as natural hosts. There are currently 18 species in this family, divided among 5 genera. [3] Its best-known member is hepatitis B virus. Diseases associated with this family include: liver infections, such as hepatitis, hepatocellular carcinomas (chronic infections ...
Infectious diseases, gastroenterology. Viral hepatitis is liver inflammation due to a viral infection. [1][2] It may present in acute form as a recent infection with relatively rapid onset, or in chronic form, typically progressing from a long-lasting asymptomatic condition up to a decompensated hepatic disease and hepatocellular carcinoma (HCC).
Koch's postulates. Robert Hermann Koch (11 December 1843 – 27 May 1910) was a German physician who developed Koch's postulates. [1] Koch's postulates (/ kɒx / KOKH) [2] are four criteria designed to establish a causal relationship between a microbe and a disease. The postulates were formulated by Robert Koch and Friedrich Loeffler in 1884 ...
The term pathogen came into use in the 1880s. [2][3] Typically, the term pathogen is used to describe an infectious microorganism or agent, such as a virus, bacterium, protozoan, prion, viroid, or fungus. [4][5][6] Small animals, such as helminths and insects, can also cause or transmit disease. However, these animals are usually referred to as ...
Viral agent Sources of agent in water supply General symptoms Hepatitis A: Hepatitis A virus (HAV) Can manifest itself in water (and food) Symptoms are only acute (no chronic stage to the virus) and include Fatigue, fever, malaise, abdominal pain, nausea, diarrhea, weight loss, itching, jaundice, and depression. Hepatitis E