| infectious hepatitis | <virology> A form of viral hepatitis, known as infectious hepatitis, due to its ability to be spread through personal contact with oral secretions or stool. Virus will be shed in the stools of an infected individual 2-3 weeks prior to the onset of any symptoms. Hepatitis A may also be transmitted sexually. Symptoms are similar to those of influenza, but the skin and eyes may become yellow. Recent travel to a third world country is a risk factor. There is no specific treatment but infected individuals should avoid potentially hepatotoxic substances. The virus is a small (27nm diameter) single stranded RNA virus with some resemblance to enteroviruses such as polio. (27 Sep 1997) |
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| infectious hepatitis immunization | See Immunization, hepatitis a. (12 Dec 1998) |
| infectious hepatitis virus | <virology> An RNA virus (hepatovirus) in the family Picornaviridae, that is the causative agent of viral hepatitis type A. The virus replicates in hepatocytes and is presumed to reach the intestine via the bile duct. Transmission occurs by the faecal-oral route. Synonym: infectious hepatitis virus. (20 Sep 2002) |
| infectious icterus | A severe form of leptospirosis caused by leptospira interrogans serogroup icterohaemorrhagica and transmitted to man by the rat. (12 Dec 1998) |
| infectious jaundice | Sometimes used in referring to viral hepatitis type A. See: Weil's disease (05 Mar 2000) |
| infectious mono | See infectious mononucleosis. (12 Dec 1998) |
| infectious mononucleosis | <haematology, virology> Self limiting disorder of lymphoid tissue caused by infection with Epstein Barr virus (infectious mononucleosis). Characterised by the appearance of many large lymphoblasts in the circulation. (13 Nov 1997) |
| infectious myositis | Inflammation of the voluntary muscles, marked by swelling and pain, affecting usually the shoulders and arms, though almost the entire body may be involved. (05 Mar 2000) |
| infectious myringitis | <otolaryngology> An infectious disorder of the eardrum resulting in painful blisters on the surface of the tympanic membrane. Can be a feature of otitis media caused by Mycoplasma infection. (13 Nov 1997) |
| infectious necrotic hepatitis of sheep | A disease of sheep caused by the bacterium Clostridium novyi, which invades livers damaged by the fluke Fasciola hepatica and causes severe necrosis and death; this disease occurs in nearly all parts of the world, including the U.S. Sometimes called black disease because of the extensive haemorrhages seen on the inner surface of the pelt when it is removed. Synonym: black disease. (05 Mar 2000) |
| infectious ophthalmia | A disease of cattle caused by the bacterium Moraxella bovis and characterised by blepharospasm, conjunctivitis, lacrimation, and corneal opacity and ulceration. Synonym: infectious ophthalmia, pinkeye. (05 Mar 2000) |
| infectious pancreatic necrosis virus | The type species of aquabirnavirus, causing infectious pancreatic necrosis in salmonid fish and other freshwater and marine animals including mollusks. (12 Dec 1998) |
| infectious papilloma of cattle | Single or multiple rough nodules on the skin and mucous membranes caused by a papillomavirus; in young cattle, which are most susceptible, they are most numerous on the head, neck, and shoulders; in cows they usually affect the udder and teats. Synonym: cattle warts. (05 Mar 2000) |
| infectious papilloma virus | <virology> A disease caused by the human papilloma virus characterised by a soft wart-like growth on the genitalia (for example penis, vulva). In adults this infection is most commonly transmitted sexually. Genital warts are very common and are increasing in incidence. Safe sex practices, such as using condoms can help decrease the risk of infection. Treatment includes several topical agents to eradicate the lesions, cryosurgery, laser therapy, electrocauterisation or surgical removal. See: alternate name condyloma acuminata. Acronym: HPV (27 Sep 1997) |
| infectious period | <epidemiology> The time period during which infecteds are able to transmit an infection to any susceptible host or vector they contact. Note that the infectious period may not necessarily be associated with symptoms of the disease. (05 Dec 1998) |