| emerging viruses | In epidemiology, a class of viruses that have long infected humans or animals but now have the opportunity to attain epidemic proportions due to human encroachment on tropical rainforests, increased international travel, burgeoning populations in less developed countries, and, possibly, global warming. About two dozen viruses have been termed emergent, including haemorrhagic viruses such as Ebola, Marburg, and Hantaan; the rabies-like viruses Mokola and Duvenhage; rodent-borne Jinin and Lassa virus; and mosquito-borne dengue. Virologists speculate that the strain of HIV that causes AIDS may also fall into this category, having entered humans through contact with monkeys in central Africa, possibly having existed among monkey populations for some 50,000 years. (05 Mar 2000) |
|---|---|
| infectious bursal disease | A highly contagious acute disease of chickens caused by the infectious bursal disease virus and characterised by whitish diarrhoea, dehydration, prostration, and destruction of the bursa of Fabricius, compromising the bird's immune system. Synonym: Gumboro disease. (05 Mar 2000) |
| infectious bursal disease virus | A species of avibirnavirus causing severe inflammation of the bursa of fabricius in chickens and other fowl. Transmission is thought to be through contaminated feed or water. Vaccines have been used with varying degrees of success. (12 Dec 1998) |
| infectious disease | A disease resulting from the presence and activity of a microbial agent. (05 Mar 2000) |
| acute infectious nonbacterial gastroenteritis | An epidemic, highly communicable but rather mild disease of sudden onset, caused by the epidemic gastroenteritis virus (especially Norwalk agent), with an incubation period of 16 to 48 hours and a duration of 1 to 2 days, which affects all age groups; infection is associated with some fever, abdominal cramps, nausea, vomiting, diarrhoea, and headache, one or another of which may be predominant. Synonym: acute infectious nonbacterial gastroenteritis. (05 Mar 2000) |
| arthritis, infectious | Arthritis caused by bacteria, rickettsiae, mycoplasmas, viruses, fungi, or parasites. Bacterial arthritis is frequently caused by staphylococcus aureus, streptococcus pneumoniae, haemophilus influenzae, and neisseria gonorrhoeae. Viral arthritis is less common than bacterial arthritis and may be a manifestation of such viral diseases as mumps, rubella, hepatitis, etc. (12 Dec 1998) |
| avian infectious encephalomyelitis | <veterinary> A disease of very young chicks caused by a picornavirus and characterised by tremor, ataxia, somnolence, and finally death. Synonym: epidemic tremor. (05 Mar 2000) |
| avian infectious laryngotracheitis virus | <virology> A herpesvirus causing avian infectious laryngotracheitis. (05 Mar 2000) |
| bone diseases, infectious | Bone diseases caused by pathogenic microorganisms. (12 Dec 1998) |
| canine infectious cyclic thrombocytopenia | An infection of dogs with the rickettsia Ehrlichia platys characterised by recurrent cyclic thrombocytopenia. (05 Mar 2000) |
| vaccination, infectious hepatitis | See Vaccination, hepatitis a. (12 Dec 1998) |
| pregnancy complications, infectious | Infections occurring during the course of pregnancy, or pregnancy during the course of an infectious disease. (12 Dec 1998) |
| hepatitis, infectious | See Hepatitis A. (12 Dec 1998) |
| hepatitis, infectious canine | An adenovirus infection causing fever, oedema, vomiting, and diarrhoea in dogs, especially puppies. In foxes it causes acute encephalitis with convulsions, paralysis, coma, and death. (12 Dec 1998) |
| proteinaceous infectious particle | A proposed pathogen composedonly of protein with no detectable nucleic acid and which is responsible for Creutzfeldt-Jakob disease and kuru inhumans and scrapie in sheep. (09 Oct 1997) |