Symptoms swine flu

Swine influenza, at the time as the 2009 H1N1 flu, is sustained by the orthomyxovirus, which commonly strikes pigs, but the viral genetic mutations to the virus can cross species on various hosts as men. The pig influenza virus (SIV) is another case of cross-species viral infection, which antecedently seen with other zoonotic infections, such as in Civets to men (SARS or Sudden Acute Respiratory Syndrome) and from birds to men than Bird influenza found (bird) influenza.
In contrast to SARS and avian influenza, swine flu mutates to the point where the virus can now transfer from person to individual. This current mutation is the cause of world-wide panic of the last outbreak in 2009, fears that a pandemic.