What is antigenic shift and drift
Автор: Nikolay's Genetics Lessons
Загружено: 2018-04-01
Просмотров: 969
Описание:
Influenza A virus
Influenza A - late passage.jpg
Electron micrograph of influenza A viruses
Virus classification
Group: Group V ((−)ssRNA)
Order: Unassigned
Family: Orthomyxoviridae
Genus: Influenzavirus A
Species: Influenza A virus
Influenza A virus causes influenza in birds and some mammals, and is the only species of influenza virus A genus of the Orthomyxoviridae family of viruses. Strains of all subtypes of influenza A virus have been isolated from wild birds, although disease is uncommon. Some isolates of influenza A virus cause severe disease both in domestic poultry and, rarely, in humans.[1] Occasionally, viruses are transmitted from wild aquatic birds to domestic poultry, and this may cause an outbreak or give rise to human influenza pandemics.
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