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Influenza B virus is almost exclusively a human pathogen, and is less common than influenza A. The only other animal known to be susceptible to influenza B infection is the seal . [ 47 ] This type of influenza mutates at a rate 2–3 times lower than type A [ 48 ] and consequently is less genetically diverse, with only one influenza B serotype ...
The virus is shed in saliva and eye and nasal secretions, and can also be spread by fomites. FVR has a two- to five-day incubation period. [3] The virus is shed for one to three weeks postinfection. [4] Latently infected cats (carriers) will shed FHV-1 intermittently for life, with the virus persisting within the trigeminal ganglion.
Adenovirus infection is a contagious viral disease, caused by adenoviruses, commonly resulting in a respiratory tract infection. [1] [9] Typical symptoms range from those of a common cold, such as nasal congestion, rhinitis, and cough, to difficulty breathing as in pneumonia. [9]
The first animal virus discovered (1897) was the foot-and-mouth disease virus (FMDV). It is the prototypic member of the genus Aphthovirus in the Picornaviridae family. [5] The plaque assay was developed using poliovirus; the discovery of viral replication in culture was also with poliovirus in 1949.
In addition, five more species have recently been discovered: West Caucasian bat virus, Aravan virus, Khujand virus, Irkut virus and Shimoni bat virus. [8] [9] The lyssavirus genus can be divided into four phylogroups based upon DNA sequence homology. Phylogroup I includes viruses, such as Rabies virus, Duvenhage virus, European bat lyssavirus ...
Virus classification showing major ranks This is a list of biological virus families and subfamilies. See also Comparison of computer viruses. This is an alphabetical list of biological virus families and subfamilies; it includes those families and subfamilies listed by the ICTV 2023 report. [1] For a list of individual species, see List of ...
Real-time magnetic resonance imaging of the human thorax during breathing X-ray video of a female American alligator while breathing. Breathing (spiration [1] or ventilation) is the rhythmical process of moving air into and out of the lungs to facilitate gas exchange with the internal environment, mostly to flush out carbon dioxide and bring in oxygen.
MR is the process by which two, or more, virus genomes containing lethal damage interact within the infected cell to form a viable virus genome. Such MR was demonstrated for adenovirus 12 after virions were irradiated with UV light and allowed to undergo multiple infection of host cells. [ 25 ]