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).
The influenza virus, unfortunately, is constantly mutating into new variations which keeps your immune system off guard.
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.
virus
Anyone exposed to the virus can potentially become ill. In addition to humans, many animals have a type of flu they can get, too.
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.
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.
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.
Yes flu is a virus
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.
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.
Swine Flu A-H1N1/09 is caused by a virus, not by a fungus. The virus is a Type A Influenza strain named A-H1N1/09 or also called the Pandemic Swine Flu virus among other names around the world.
Avian Flu is caused by the virus like Flu virus in man. This virus has evolved with birds.