Facts About Swine Influenza
Essential Facts About Swine Influenza Virus
The respiratory infection of pigs caused by the Type A influenza virus with high level of illness and low death rates is known as swine influenza or swine flu. Even though the swine influenza virus was first isolated in 1930, its strains and subtypes were identified in pigs during the mid 20th century. Swine influenza facts reveal that it does not really affect humans unless the persons have direct exposure to the pigs. Over the years, many variations have occurred in swine flu viruses but the most common subtypes that have been isolated in pigs are identified as H1N1, H1N2, H3N2 and H3N1.
Some of the Important Swine Influenza Facts
Before thoroughly knowing about the disease it is very important for everyone to become familiar with few swine influenza facts.
- A new strain of Type A influenza also termed as novel influenza H1N1 virus has been first identified in Mexico in the year 2009, which includes the strains of genes from many different sources such as avian, swine and human influenza virus. According to swine influenza facts and clinical studies, this virus changes or mutates constantly resulting in many strains of H1N1 differing subtly from each other. The two main antigens or proteins called (H) and Neuraminidase (N) that exits on the outer surface of influenza are responsible for these variations of the viruses.
- Swine influenza facts establish that the first case was confirmed in Northern Ireland on 16th September, 2009 and later spread into all parts of the world thus turning out into a global concern. In 2009, the world health organization (WHO) has declared it as level 6 pandemic and advised all individuals to take vaccination to prevent spreading of this disease and reducing its symptoms severity.
- One of the main swine influenza facts to keep in mind is, this virus is not transmissible to people through eating processed pork or other food products derived from pigs. The disease mainly gets contaminatedeasily by the direct contact with surfaces of respiratory secretions. The swine influenza is further characterized by the symptoms like fever, cold & cough, short of breath, nasal infection or chest inflammation, lethargy etc which usually appear after three to four days of exposure.