Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
pulmonary infection caused by a virus.
viral pneumoniaPulmonology Pneumonia of viral origin, which is more severe in the very young and very old Common pathogens Adenovirus, influenza virus, parainfluenza virus, RSV, rhinovirus, HS, CMV. See Influenza, Pneumonia, Respiratory syncytial virus.
Any infections of the lower respiratory tract (the lungs, bronchioles, and trachea) caused by viral species such as adenovirus, coronavirus, herpesviruses, influenza viruses, and respiratory syncytial viruses. Viral pneumonias may range from mild respiratory infections (with nonproductive cough and low-grade fevers) to life-threatening and highly contagious illnesses (such as SARS). See: bronchitis; bronchiolitis
See also: pneumonia
pertaining to or caused by a virus.
see equine viral arteritis.
a contagious disease of chickens and turkeys caused by a reovirus and characterized by a high incidence of inapparent infection and some cases of joint swelling and lameness.
final steps in the replication of viruses in which virions are assembled from their separately synthesized components. The final steps of viral maturation prior to release from the cell.
viruses grow only in living cells which in the laboratory are provided by embryonated hen eggs, cell culture, or laboratory animals (rabbits, mice, etc.).
occurs in most species, especially in the newborn. In cattle, rotavirus and coronavirus are the common agents but bovine herpesvirus 1 and others may also be the cause in this age group. In older cattle bovine virus diarrhea (mucosal disease) is the major cause. Some other diseases may have diarrhea as an incidental sign, e.g. rinderpest, bovine malignant catarrhal fever.
equine viral abortion
viral hemorrhagic septicemia
important rhabdoviral infection of rainbow trout. Also causes infection, and sometimes disease, in other salmonids, pike, turbot, Pacific cod and Pacific herring. Acute infection is characterized by hemorrhages and a high mortality. Chronic infection may be inapparent.
see duck hepatitis.
viral interstitial pneumonia
bovine syncytial virus, a common cause of interstitial pneumonia in all age cattle, especially calves.
a receptor binding molecule on the surface of a virus. See also ligand.
viral papular dermatitis
see equine papular dermatitis.
see enzootic pneumonia.
viral pneumonia calf
caused by parainfluenza-3 virus, bovine respiratory syncytial virus; infection with Mycoplasma, Ureaplasma, Pasteurella spp. may also accompany the viral infection.