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pertaining to or caused by a virus.


Of, pertaining to, or caused by a virus.


/vi·ral/ (vi´ral) pertaining to or caused by a virus.


1. Of, relating to, or caused by a virus.
2. Of or relating to the rapid propagation of information, ideas, or trends by means of social networks rather than conventional mass media: viral marketing.

vi′ral·ly adv.


Of, pertaining to, or caused by a virus.


Inflammation of the liver, due usually to viral infection but sometimes to toxic agents.
[hepat- + -itis]

hep·a·ti·tis, vi·ral, non-A, non-B

(NANB) (hepă-tītis, vīrăl)
Disease due to viral agents other than hepatitis viruses A or B.


pertaining to or caused by a virus.

viral abortion
see equine viral abortion (below). See also equine viral rhinopneumonitis, equine viral arteritis, infectious bovine rhinotracheitis.
viral arteritis
see equine viral arteritis.
viral arthritis
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.
viral assembly
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.
viral cultivation
viruses grow only in living cells which in the laboratory are provided by embryonated hen eggs, cell culture, or laboratory animals (rabbits, mice, etc.).
viral diarrhea
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
caused by equine herpesvirus 1, sometimes equine herpesvirus 4. Abortion occurs in the last trimester and often involves a majority of mares in a group (abortion storm). See also equine viral rhinopneumonitis, equine viral arteritis.
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.
viral hepatitis
see duck hepatitis.
viral interstitial pneumonia
bovine syncytial virus, a common cause of interstitial pneumonia in all age cattle, especially calves.
viral ligand
a receptor binding molecule on the surface of a virus. See also ligand.
viral papular dermatitis
see equine papular dermatitis.
viral pneumonia
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.
viral recombination
viral replication
viral teratogen
see akabane virus disease, aino virus disease, bovine virus diarrhea, rift valley fever, wesselsbron disease, bluetongue, border disease, classical swine fever (hog cholera), feline panleukopenia.
viral transcription

Patient discussion about viral

Q. What are the causes of viral blisters on the skin? For a few months now I've been having these hard viral blisters on my fingers. The only way to get rid of them is with freezed carbon. It does go away with that treatment- after a few weeks but then a new one appears. How can I prevent it from "attacking" again??

A. These viral blisters you are describing are caused by HPV (papilloma virus), and are very hard to get rid of without treatment with freezed carbon. Many of us have the virus but not everyone gets the actual infection. There is not a proved way of preventing from it to happen again after treatment, unfortunately..

More discussions about viral
References in periodicals archive ?
The COHERE team used standard statistical methods to identify factors linked to changes in CD4 count and viral load.
The percentages of positive fragments (number of fragments containing viral nucleic acid/total number of sequenced fragments) in the reactions for detection of these 5 viruses were 60% (3/5), 45% (5/11), 100% (12/12), 50% (5/10), and 40% (4/10), respectively.
We are ready to begin our beta program for Voxant's Viral Syndication Network and TheNewsRoom, and we want to open it up to news organizations, advertisers and Web publishers who are looking for a new approach to Web distribution," Crigler said.
7) Though viral load increased once treatment was interrupted, it quickly returned to baseline levels once treatment was re-initiated, and no drug-resistance mutations were detected.
But the biggest fear is the development of viral resistance to the drugs the patient is starting and stopping.
Descendants of that organism would also contain those viral genes.
There are no inoculations to prevent or treat cases of viral meningitis.
Researchers divided study participants into four groups: (1) people whose viral load always remained undetectable, that is, below 50 copies, (2) people with a viral load between 50 and 199 copies for 6, 9, or 12 months, (3) people with a viral load between 200 and 499 copies for 6, 9, or 12 months, and (4) people with a viral load between 500 and 999 copies for 6, 9, or 12 months.
Amplification of fragments of the F1L gene, an apoptosis modulator, and the rpo18 gene, the small subunit of viral RNA polymerase (1) (both genes are encoded by all poxviruses including variola virus), was monitored by gene-specific 5'-nuclease probes.
4 log drop in viral load in the subset of patients who were not receiving 3TC or FTC in their background treatment regimen versus a 0.
But until recently, nobody had any reason to imagine using them as part of a strategy for reducing HIV viral load.