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There are currently two known subtypes of Influenza A that are infective to humans and called the Swine Flu. One is called Influenza Type A H1N1, it is infective to humans and pigs and was the initial swine flu strain that surfaced originally in the 1930s, again in the 1970's, and perhaps another time or two in very small outbreaks since then in humans, but which has been active in hogs for these decades.
There is also the new strain called Swine Flu that was identified first in late March, 2009 and has now become called Influenza Type A H1N1/09 Virus or Novel H1N1 (see the related questions below about the names of the new Swine Flu, what caused it and when and where it began).
Wiki User
∙ 14y ago
Wiki User
∙ 11y agoAll flu and cold viruses mutate, it is how they bypass your immune system's attempts to rid it from your body. When it mutates, your immune system doesn't recognize it as the same virus and the antibodies it built in the past for the original version no longer protect you.
Wiki User
∙ 14y agoWell, the swine flu itself is a mutation of a flu that used to only affect pigs. So far, there are no further mutations of it that we know of.
Wiki User
∙ 15y agoAll viruses, including influenza viruses, are able to mutate quickly.
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Why do you not become immune to flu?
There are many strains of flu virus, & they are constantly mutating; you can only become immune to strains of flu that your body has already encountered, or that you have been immunized against.
Why can you get the flu loads of times?
The influenza virus, unfortunately, is constantly mutating into new variations which keeps your immune system off guard.
What type of virus is the H1N1 classified as?
It is a Type A Influenza virus with RNA genome.Also called Swine Flu, the 2009 Pandemic Flu, 2009 Swine Flu, and A-H1N1/09.
What type of microorganism cuse the flu?
virus
Why is it easier to make drugs that fight bacteria than viruses?
Viruses are constantly mutating which is why flu shots not always successful as they must predict which way the virus is going to evolve.
Who can get the virus the flu?
Anyone exposed to the virus can potentially become ill. In addition to humans, many animals have a type of flu they can get, too.
What is a H1N1 virus?
Swine flu is a respiratory disease caused by type A influenza virus that regularly causes outbreaks of influenza in pigs. The "classical" swine flu virus (an influenza type A H1N1 virus) was first isolated from a pig in 1930. Swine flu viruses cause illness in pigs, but the death rates are low. This new virus, although it is being called "swine flu," is not the same virus.
What is A H1N1?
Swine Flu is a respiratory disease caused by type A influenza virus that regularly causes outbreaks of influenza in pigs. The "classical" swine flu virus (an influenza type A H1N1 virus) was first isolated from a pig in 1930. Swine flu viruses cause illness in pigs, but the death rates are low. This new virus, although it is being called "swine flu," is not the same virus.
Why does influenza virus cause recurrent infections?
The influenza virus doesn't always cause recurrent infections. There are many different strains of the flu and there are two types, which are Type A ad Type B. The flu is a virus that has to run its course.
Can you get Swine Flu if you have Type A flu?
You could, but it is not very likely for a human to have more than one type of flu virus at the same time. Although not well understood yet, it is noted that many times there is a prevalent flu virus in a region, and for some reason, it seems to prevent another virus from getting a foothold at the same time. To be strictly correct in the answer to your question, the answer would really be yes...because Swine flu is also a Type A Influenza, so if you have Swine Flu, you have Type A flu. But there are many different Type A flu viruses, and as said above, usually a person gets one type or another, not both.
Is the flu linked to a virus?
Yes flu is a virus
Is it H1N1 or the H1N1?
It is a flu (influenza) virus. All flus are caused by viruses. A virus is categorized by type such as Influenza Virus Type A, Type B or Type C. Viruses are always changing and mutating, and flu viruses are especially quick in their ability to mutate. When a mutation occurs, they are categorized further as subtypes and then to a finder degree as strains. H1N1 is a subtype of Influenzavirus A. The pandemic swine flu is further identified as A-H1N1/09 indicating the specific mutation of A-H1N1 into the type that caused the pandemic of 2009. Beyond that, the individual strains are broken down and named usually according to the year they were isolated and the location where they were first found. See the related question below for more information on how viruses are named.
