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Type B Influenza facts and comparison with Type A influenza viruses:
- Type B Influenzavirus is an infectious virus in the the Genera of Orthomyxoviridae (flu viruses). It is an RNA virus.
- Orthomyxoviridae in the Genera of Influenzavirus Type A have been the pathogens that have caused all of the various flu pandemics since we have known about viruses as infectious agents.
- Type B flu viruses are typically much less easily spread among people than the Type A viruses.
- Type A influenza virus strains mutate 2 - 3 times faster, making it more difficult to prevent infections of Type A with vaccination, as exact matches to use them are less available after only a few mutations which makes them less effective in vaccines.
- With Type B viruses, the severity of the symptoms are typically not as bad as in Type A, and the duration of the illness can be shorter than the Type A infections.
- There are many more opportunities to contract Type A flu than there are for getting Type B flu, because there are so many host animals that can get Type A flu...more cases = more spread = more cases = more spread...
- The only known types of animals that can be infected with Type B influenzavirus are humans, seals, and ferrets. Type A has significantly more hosts besides humans, including birds, especially wild water fowl and poultry, swine/pigs, turkeys, dogs, cats, ferrets, and a few others.
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoInfluenza is another name for Type B flu.
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What is the difference between Type B flu viruses and the Swine Flu?
They are different types of influenza viruses. Human "Swine flu" (H1N1/09) is caused by Type A viruses.
Is 2012 flu shot protecting us from flu b?
Yes, every year in the US the annual flu vaccine is made with three types of flu viruses, two Type A flu viruses and one Type B. This is true with the 2012-2013 vaccines. See the related questions for more information.
How harsh is the strand B flu?
The illness is usually much less severe than Type A flu viruses. The Type B influenzavirus mutates at a slower rate (2-3X less) than Type A influenzavirus, so immunity is better achieved, although they mutate often enough to make Type B viruses a part of each seasonal flu vaccine. Type B flu viruses only infect humans, seals, and ferrets. This makes it less available for contamination of new hosts. All pandemics have been due to Type A influenzaviruses.
What is Flu?
That refers to Type A influenza viruses that are common with our seasonal flu. There are two flu types that humans get: Type A and Type B. The flu vaccine contains some of both types to prevent infections from them. All of the flu pandemics we have had over history have been caused by Type A flu viruses, they are typically very easily transmitted from person to person. Don't forget to get a flu shot ASAP now that it is October - the start of the Northern Hemisphere flu season.
What type of virus cause flu?
Influenza viruses, Types A, B, and C. The flu viruses are all in the viral family called Orthomyxoviridae.
What is flu A?
That refers to Type A influenza viruses that are common with our seasonal flu. There are two flu types that humans get: Type A and Type B. The flu vaccine contains some of both types to prevent infections from them. All of the flu pandemics we have had over history have been caused by Type A flu viruses, they are typically very easily transmitted from person to person. Don't forget to get a flu shot ASAP now that it is October - the start of the Northern Hemisphere flu season.
What gives you meningitis?
I have been researching meningitis and one of the cause of it is the FLU VIRUS TYPE B.
Is H3N2 virus included in the 2012-2013 flu shot?
Yes. The 2012-2013 flu season trivalent vaccines include:Type A/California/7/2009 (H1N1) ~ the "swine flu vaccine",Type A/Victoria/361/2011 (H3N2), andType B/Wisconsin/1/2010.The nasal mist FluMist Quadrivalent that came out this year, contains four types of flu viruses, including the same Type A viruses listed above and two Type B virus lineages:Type B/Yamagata/16/88, andType B/Victoria/2/87
Are all influenza Type A viruses the Swine Flu?
No, the pandemic A-H1N1/09 "swine flu" is just one of many Type A influenza strains. It is also one of many H1N1 flu subtypes. Besides Type A influenzas, there are also influenza Types B and C in humans.
What strains of flu does the 2012 - 2013 flu vaccination protect against?
For the 2012-2013 flu season in the US:This year's trivalent seasonal flu vaccines will protect against the following three strains of influenza:Type A/California/7/2009 (H1N1) ~ the "swine flu vaccine",Type A/Victoria/361/2011 (H3N2), andType B/Wisconsin/1/2010.There is also a new vaccine in the 2012-2013 flu season that is FluMist Quadrivalent. This new vaccine includes two Type B strains of flu instead of one. It contains B strains from both the B/Yamagata/16/88 and the B/Victoria/2/87 lineages in addition to the same strains of the Type A viruses (H1N1 and H3N2) that are included in the trivalent vaccines for this season. See the related questions below for more info.
What is the difference between influenza type A and type B?
Influenza Type A is your typical flu...its the one everyone gets. Influenza Type B is much slower than type A and can last twice as long with the symptoms gradually coming on.
What does the A stand for in Influenza A virus?
The A and B in influenza are simply different types of influenza. * Type A: seasonal epidemics. This sub-type is based on changes in surface antigens hemagglutinin and neuraminidase. In humans subtypes H1-H3 and N1-N2 have circulated since 1918 pandemic (due to H1N1). In the last 3 decades the circulating types have been H3N2 and H1N1. * Type B: sporadic outbreaks (long term care facilities)
