#virus__viru ultramicroscopic infectious agent that replicates itself only within cells of living hosts; many are pathogenic
supertype: #microorganism any organism (animal or plant) of microscopic size
subtype: #bacteriophage__phage virus parasitic in bacteria; multiplies within its host
subtype: #plant_virus__plantviru a plant pathogen that is a virus consisting of a single strand of RNA
subtype: #tobacco_mosaic_virus__TMV the widely studied plant virus that causes tobacco mosaic; it was the first virus discovered (1892)
subtype: #viroid__virusoid a plant virus with its RNA arranged in a circular chromosome without a protein coat
subtype: #onion_yellow-dwarf_virus the virus that produces stunting and yellowing of the leaves of onion plants
subtype: #potato_yellow-dwarf_virus the virus that produces stunting and yellowing of the leaves of potato plants
subtype: #animal_virus an animal pathogen that is a virus
subtype: #adenovirus any of a group of viruses including those that in humans cause upper respiratory infections or infectious pinkeye
subtype: #parainfluenza_virus__parainfluenzaviru a virus that causes upper respiratory infection (including the common cold and bronchiolitis); most often in children
subtype: #ebola_virus__ebolaviru a virus that causes viral hemorrhagic fever
subtype: #poxvirus any of a group of viruses that can cause pox diseases in vertebrates
subtype: #myxoma_virus a poxvirus closely related to smallpox virus; causes benign gelatinous tumors in humans
subtype: #variola_virus__variolaviru__smallpox_virus the virus that causes smallpox in humans
subtype: #variola_major_virus__variolamajorviru__variola_major__variolamajor a type of smallpox virus that has a fatality rate of up to 25 percent
subtype: #variola_minor_virus__variolaminorviru__variola_minor__variolaminor a type of smallpox virus that has a fatality rate of about 1 percent
subtype: #hepadnavirus a group of animal DNA viruses including viruses of ducks and woodchucks and squirrels and others as well as the virus causing hepatitis B in humans
subtype: #retrovirus any of a group of viruses that contain two single-strand linear RNA molecules per virion and reverse transcriptase (RNA to DNA)
subtype: #HTLV-1__human_T-cell_leukemia_virus-1 retrovirus causing T-cell leukemia
subtype: #HIV__human_immunodeficiency_virus the virus that causes acquired immune deficiency syndrome (AIDS); it replicates in and kills the helper T cells
subtype: #myxovirus__myxoviru any of a group of RNA viruses including those that cause influenza and mumps
subtype: #orthomyxovirus a group of viruses including those causing influenza
subtype: #paramyxovirus__paramyxoviru a group of viruses including those causing mumps and measles
subtype: #respiratory_syncytial_virus__respiratorysyncytialviru a paramyxovirus that forms syncytia in tissue culture and that is responsible for severe respiratory diseases such as bronchiolitis and bronchial pneumonia (especially in children)
subtype: #picornavirus a group of single-strand RNA viruses with a protein coat
subtype: #enterovirus__enteroviru any of a group of picornaviruses that infect the gastrointestinal tract and can spread to other areas (especially the nervous system)
subtype: #poliovirus the virus causing poliomyelitis
subtype: #hepatitis_A_virus the virus causing hepatitis A
subtype: #coxsackievirus__Coxsackie_virus enterovirus causing a disease resembling poliomyelitis but without paralysis
subtype: #echovirus__echoviru any of a group of viruses associated with various diseases including viral meningitis and mild respiratory disorders and diarrhea in newborn infants
subtype: #rhinovirus any of a group of picornaviruses that are responsible for many upper respiratory infections
subtype: #herpes_virus__herpes any of the animal viruses that cause painful blisters on the skin
subtype: #herpes_simplex_virus__herpes_simplex a herpes virus that affects the skin and nervous system
subtype: #herpes_simplex_1__HS1__HSv-1 a herpes virus that causes oral herpes
subtype: #herpes_simplex_2__HS2__HSV-2 a herpes virus that can cause genital herpes
subtype: #herpes_zoster_virus__herpes_zoster a herpes virus that causes shingles
subtype: #herpes_varicella_zoster_virus__herpes_varicella_zoster a herpes virus that causes chickenpox and shingles
subtype: #Epstein-Barr_virus__EBV the herpes virus that causes infectious mononucleosis; associated with specific cancers in Africa and China
subtype: #cytomegalovirus__cytomegaloviru any of a group of herpes viruses that can cause birth defects; can affect humans with impaired immunological systems
subtype: #varicella_zoster_virus the member of the herpes virus family that is responsible for chickenpox
subtype: #papovavirus__papovaviru any of a group of animal viruses associated with or causing papillomas or polyomas
subtype: #human_papilloma_virus__humanpapillomaviru any of a group of papovaviruses associated with genital or oral carcinomas or a group associated with benign genital tumors
subtype: #polyoma_virus__polyomaviru__polyoma a virus the can initiate various kinds of tumors in mice
subtype: #togavirus__togaviru any of a group of single-strand RNA viruses including those causing hepatitis non-A non-B and yellow fever
subtype: #rhabdovirus__rhabdoviru any of a group of RNA viruses including those causing rabies
subtype: #reovirus any of a group of RNA viruses including the rotavirus causing infant enteritis
subtype: #rotavirus__rotaviru the reovirus causing infant enteritis
subtype: #parvovirus__parvo any of a group of viruses containing DNA in an icosahedral protein shell and causing disease in dogs and cattle; not known to be associated with any human disease
subtype: #slow_virus a virus that remains dormant in the body for a long time before symptoms appear; "kuru is caused by a slow virus"
subtype: #tumor_virus a cell-free filtrate held to be a virus responsible for a specific neoplasm
subtype: #wound_tumor_virus__woundtumorviru__WTV a tumor virus transmitted by leafhoppers
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