Herpesvirus 1, Meleagrid: A species in the genus MAREK'S DISEASE-LIKE VIRUSES, in the family HERPESVIRIDAE, infecting turkeys.Herpesvirus 8, Human: A species in the genus RHADINOVIRUS, subfamily GAMMAHERPESVIRINAE, isolated from patients with AIDS-related and "classical" Kaposi sarcoma.Herpesvirus 6, Human: The type species of ROSEOLOVIRUS isolated from patients with AIDS and other LYMPHOPROLIFERATIVE DISORDERS. It infects and replicates in fresh and established lines of hematopoietic cells and cells of neural origin. It also appears to alter NK cell activity. HHV-6; (HBLV) antibodies are elevated in patients with AIDS, Sjogren's syndrome, sarcoidosis, chronic fatigue syndrome, and certain malignancies. HHV-6 is the cause of EXANTHEMA SUBITUM and has been implicated in encephalitis.Herpesvirus 2, Saimiriine: The type species of RHADINOVIRUS, in the subfamily GAMMAHERPESVIRINAE, isolated from squirrel monkeys. It produces malignant lymphomas (LYMPHOMA, MALIGNANT) in inoculated marmosets or owl monkeys.Herpesvirus 1, Equid: A species of VARICELLOVIRUS causing abortion and respiratory disease in horses.Herpesviridae: A family of enveloped, linear, double-stranded DNA viruses infecting a wide variety of animals. Subfamilies, based on biological characteristics, include: ALPHAHERPESVIRINAE; BETAHERPESVIRINAE; and GAMMAHERPESVIRINAE.Herpesvirus 1, Bovine: A species of VARICELLOVIRUS that causes INFECTIOUS BOVINE RHINOTRACHEITIS and other associated syndromes in CATTLE.Herpesviridae Infections: Virus diseases caused by the HERPESVIRIDAE.Herpesvirus 7, Human: A species in the genus ROSEOLOVIRUS, of the family HERPESVIRIDAE. It was isolated from activated, CD4-positive T-lymphocytes taken from the blood of a healthy human.Herpesvirus 4, Bovine: A species in the genus RHADINOVIRUS, subfamily GAMMAHERPESVIRINAE, infecting cattle.Sarcoma, Kaposi: A multicentric, malignant neoplastic vascular proliferation characterized by the development of bluish-red cutaneous nodules, usually on the lower extremities, most often on the toes or feet, and slowly increasing in size and number and spreading to more proximal areas. The tumors have endothelium-lined channels and vascular spaces admixed with variably sized aggregates of spindle-shaped cells, and often remain confined to the skin and subcutaneous tissue, but widespread visceral involvement may occur. Kaposi's sarcoma occurs spontaneously in Jewish and Italian males in Europe and the United States. An aggressive variant in young children is endemic in some areas of Africa. A third form occurs in about 0.04% of kidney transplant patients. There is also a high incidence in AIDS patients. (From Dorland, 27th ed & Holland et al., Cancer Medicine, 3d ed, pp2105-7) HHV-8 is the suspected cause.Herpesvirus 1, Canid: A species of VARICELLOVIRUS virus that causes a disease in newborn puppies.Herpesvirus 2, Gallid: The type species of the genus MARDIVIRUS in the family HERPESVIRIDAE. It is the etiologic agent of MAREK DISEASE, infecting domestic fowl and wild birds.Herpesvirus 5, Bovine: A species of VARICELLOVIRUS that causes a fatal MENINGOENCEPHALITIS in calves.Herpesvirus 4, Equid: A species of VARICELLOVIRUS and the chief cause of rhinopneumonitis in horses.Roseolovirus Infections: Infection with ROSEOLOVIRUS, the most common in humans being EXANTHEMA SUBITUM, a benign disease of infants and young children.Herpesvirus 1, Cercopithecine: A species of SIMPLEXVIRUS that causes vesicular lesions of the mouth in monkeys. When the virus is transmitted to man it causes an acute encephalitis or encephalomyelitis, which is nearly always fatal.Viral Proteins: Proteins found in any species of virus.Alphaherpesvirinae: A subfamily of HERPESVIRIDAE characterized by a short replication cycle. The genera include: SIMPLEXVIRUS; VARICELLOVIRUS; MAREK'S DISEASE-LIKE VIRUSES; and ILTOVIRUS.Herpesvirus 1, Suid: A species of VARICELLOVIRUS producing a respiratory infection (PSEUDORABIES) in swine, its natural host. It also produces an usually fatal ENCEPHALOMYELITIS in cattle, sheep, dogs, cats, foxes, and mink.Gammaherpesvirinae: A subfamily of HERPESVIRIDAE characterized by variable reproductive cycles. The genera include: LYMPHOCRYPTOVIRUS and RHADINOVIRUS.DNA, Viral: Deoxyribonucleic acid that makes up the genetic material of viruses.Herpesvirus 4, Human: The type species of LYMPHOCRYPTOVIRUS, subfamily GAMMAHERPESVIRINAE, infecting B-cells in humans. It is thought to be the causative agent of INFECTIOUS MONONUCLEOSIS and is strongly associated with oral hairy leukoplakia (LEUKOPLAKIA, HAIRY;), BURKITT LYMPHOMA; and other malignancies.Herpesvirus 1, Human: The type species of SIMPLEXVIRUS causing most forms of non-genital herpes simplex in humans. Primary infection occurs mainly in infants and young children and then the virus becomes latent in the dorsal root ganglion. It then is periodically reactivated throughout life causing mostly benign conditions.Virus Latency: The ability of a pathogenic virus to lie dormant within a cell (latent infection). In eukaryotes, subsequent activation and viral replication is thought to be caused by extracellular stimulation of cellular transcription factors. Latency in bacteriophage is maintained by the expression of virally encoded repressors.Varicellovirus: A genus of the family HERPESVIRIDAE, subfamily ALPHAHERPESVIRINAE. Its species include those causing CHICKENPOX and HERPES ZOSTER in humans (HERPESVIRUS 3, HUMAN), as well as several animal viruses.Registries: The systems and processes involved in the establishment, support, management, and operation of registers, e.g., disease registers.Phylogeny: The relationships of groups of organisms as reflected by their genetic makeup.Molecular Sequence Data: Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.Software: Sequential operating programs and data which instruct the functioning of a digital computer.Genetic Variation: Genotypic differences observed among individuals in a population.Amino Acids, Cyclic: A class of amino acids characterized by a closed ring structure.Medical Records: Recording of pertinent information concerning patient's illness or illnesses.Siadenovirus: A genus of ADENOVIRIDAE comprising species including viruses of frogs (FROGS AND TOADS) and TURKEYS. The type species is Frog adenovirus.Atadenovirus: A genus of ADENOVIRIDAE that comprises viruses of several species of MAMMALS and BIRDS. The type species is Ovine adenovirus D.DNA Viruses: Viruses whose nucleic acid is DNA.Phycodnaviridae: A family of DNA plant viruses that infect eukaryotic algae.Aviadenovirus: A genus of ADENOVIRIDAE that infects birds. The type species is FOWL ADENOVIRUS A.Mastadenovirus: A genus of ADENOVIRIDAE that infects MAMMALS including humans and causes a wide range of diseases. The type species is Human adenovirus C (see ADENOVIRUSES, HUMAN).Struthioniformes: An order of flightless birds comprising the ostriches, which naturally inhabit open, low rainfall areas of Africa.Henipavirus: A genus in the subfamily PARAMYXOVIRINAE, family PARAMYXOVIRIDAE. It contains species that infect and cause potentially fatal disease in a number of host species, including humans.Northwest Territories: A federally administered division of Canada. Its capital is Yellowknife. The former northern and eastern-most parts of the Territory comprise the new territory of Nunavut, effective April 1, 1999.Longitudinal Ligaments: Two extensive fibrous bands running the length of the vertebral column. The anterior longitudinal ligament (ligamentum longitudinale anterius; lacertus medius) interconnects the anterior surfaces of the vertebral bodies; the posterior longitudinal ligament (ligamentum longitudinale posterius) interconnects the posterior surfaces. The commonest clinical consideration is OSSIFICATION OF POSTERIOR LONGITUDINAL LIGAMENT. (From Stedman, 25th ed)Henipavirus Infections: Infections with viruses of the genus HENIPAVIRUS, family PARAMYXOVIRIDAE.Hendra Virus: A species of HENIPAVIRUS first identified in Australia in 1994 in HORSES and transmitted to humans. The natural host appears to be fruit bats (PTEROPUS).Chiroptera: Order of mammals whose members are adapted for flight. It includes bats, flying foxes, and fruit bats.