08-09-2017, 11:21 AM
Swine flu is an infection caused by one of several types of swine flu virus. The swine influenza virus (SIV) or the swine influenza virus (S-OIV) is any strain of the influenza virus family that is endemic in pigs. As of 2009, known strains of SIV include influenza C and influenza A subtypes known as H1N1, H1N2, H2N1, H911, H3N1, H3N2 and H2N3.
Swine flu was first seen in humans in Mexico in 2009, where the particular virus strand was a marriage of 3 types of strands. Six of the genes are very similar to the H1N2 influenza virus that was found in pigs around 2000.
The swine flu virus is common in pig populations around the world. Transmission of the virus from pigs to humans is not common and does not always lead to human influenza, it often only results in the production of antibodies in the blood. If the transmission causes the human flu, it is called zoonotic swine flu. People with regular exposure to pigs are at increased risk of infection with swine flu.
Around the middle of the 20th century, the identification of influenza subtypes became possible, allowing an accurate diagnosis of transmission to humans. Since then, only 50 transmissions of this type have been confirmed. These strains of swine flu rarely go from human to human. The symptoms of zoonotic swine flu in humans are similar to those of influenza and flu-like illnesses in general, namely, chills, fever, sore throat, muscle aches, severe headache, cough, weakness, shortness of breath and malaise.
In August 2010, the World Health Organization officially declared the swine flu pandemic. Cases of swine flu have been reported in India, with more than 31,156 positive test cases and 1,841 deaths as of March 2015.
Swine flu was first seen in humans in Mexico in 2009, where the particular virus strand was a marriage of 3 types of strands. Six of the genes are very similar to the H1N2 influenza virus that was found in pigs around 2000.
The swine flu virus is common in pig populations around the world. Transmission of the virus from pigs to humans is not common and does not always lead to human influenza, it often only results in the production of antibodies in the blood. If the transmission causes the human flu, it is called zoonotic swine flu. People with regular exposure to pigs are at increased risk of infection with swine flu.
Around the middle of the 20th century, the identification of influenza subtypes became possible, allowing an accurate diagnosis of transmission to humans. Since then, only 50 transmissions of this type have been confirmed. These strains of swine flu rarely go from human to human. The symptoms of zoonotic swine flu in humans are similar to those of influenza and flu-like illnesses in general, namely, chills, fever, sore throat, muscle aches, severe headache, cough, weakness, shortness of breath and malaise.
In August 2010, the World Health Organization officially declared the swine flu pandemic. Cases of swine flu have been reported in India, with more than 31,156 positive test cases and 1,841 deaths as of March 2015.