Influenzavirus C
| Orthomyxoviridae | |
|---|---|
| Virus classification | |
| Group: | Group V ((−)ssRNA) |
| Family: | Orthomyxoviridae |
| Genera | |
|
Influenza virus A |
|
Influenza virus A
Influenza virus B
Influenza virus C
Isavirus
Thogotovirus
Influenza virus C is a genus in the virus family Orthomyxoviridae, which includes those viruses which cause influenza.
The species in this genus is called Influenza C virus. Influenza C viruses are known to infect humans and pigs.
Flu due to the type C species is rare compared to types A or B, but can be severe and can cause local epidemics. Subtype C has 7 RNA segments and encodes 9 proteins, while types A and B have 8 RNA segments and encode at least 10 proteins.
Influenza viruses are members of the family Orthomyxoviridae. Influenza viruses A, B and C represent the three antigenic types of influenza viruses. Of the three antigenic types, influenza virus A is the most severe, influenza virus B is less severe but can still cause outbreaks, and influenza virus C is usually only associated with minor symptoms.
Influenza virus A can infect a variety of animals as well as humans and its natural host or reservoir is birds whereas influenza viruses B and C do not have animal reservoirs. Influenza virus C is not as easily isolated so less information is known of this type, but studies show that it occurs worldwide.
This virus may be spread from person to person through respiratory droplets or by fomites (non-living material) due to its ability to survive on surfaces for short durations. Influenza viruses have a relatively short incubation period (lapse of time from exposure to pathogen to the appearance of symptoms) of 18–72 hours and infect the epithelial cells of the respiratory tract. Influenza virus C tends to cause mild upper respiratory infections. Cold-like symptoms are associated with the virus including fever (38-40ᵒC), dry cough, rhinorrhea (nasal discharge), headache, muscle pain, and achiness. The virus may lead to more severe infections such as bronchitis and pneumonia.
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Wikipedia