swine-flu-h1n1
The virus H1N1

On this page you will find all information about the swine pathogen H1N1 influenza, its history and its novel subtype A/H1N1, which is now coming from Mexico threatens the world



Historic to A/H1N1-Virus

The influenza A/H1N1 virus is not new. 2x Already he is historically documented, and had always been for a global disease (pandemic), with many millions of deaths should:

1918 - 1920- flu season was the "Spanish flu" called. In their first lap around the world, she was still relatively harmless. Only when the second round, she is extremely Totbringend too. She claimed a total estimated 50 million deaths worldwide. By comparison, Germany has currently (2008) 82 million inhabitants. See our book recommendation: "Toll of cherries and Quarantine: The History of the Spanish flu." You will find the book service - books.

1977 - 1978 of disease appeared again under the name "Russian flu". Worldwide died while an estimated 700,000 people. From a pandemic was not spoken since, particularly among young people under the 23rd Years died, not people of all ages. The reason is that older people had a certain immunity from the first wave of flu 1918 - 1920 possessed.

2009 now appears again on the pathogen and is everywhere in the media as a "swine flu" titled. The number of deaths may not yet be assessed. From a pandemic, however, is to be favored by the global long-haul traffic.

 

The pig as an eponym

In 1930, the pathogen H1N1 first detected in pigs. For these animals, but he is not dangerous and are not fatal.

As for human and pig viruses are similarly vulnerable, it came in the past has often before, the people who have direct contact with pigs were infected itself. However, the chain ends.

The now emerged of the subtype A-H1N1 virus has continued to develop. It is a mixture of pigs, birds and human virus and may thus also from human to human spread. More about the routes of infection here.



Effect of the A/H1N1

The A/H1N1 virus belongs to the family of influenza viruses . Altogether there are 16 H types and 9 N types. It provides the "H" the Hämagglutinie and "N" Neuraminidase.

The composition of the H1N1 subtypes A, also known as porcine influenza, acts as a flu because they belong to this family.

For information: die every year in Germany at the usual influenza approximately 5,000 - 15,000 flu patients. 4.5 million sick notes a flu wave brings with it - according to the Robert Koch Institute. Through these figures vaccines can be kept relatively low. For the current flu pigs lacking a vaccine. This is significantly more deaths can be expected.

Propagation of the H1N1

Human or animal virus which serve as host. Otherwise, it "does not matter." His only concern is to reproduce itself and survive. That he is his "host" so much weakens the immune system, which collapses and he is dying, is not primarily intended.

The virus infects preferably the respiratory tract and then embed itself in a host cell. There is then up to 100,000 new influenza virus before the host cell dies. These viruses are released and infect new cells. Either they nest in adjacent cells, or search for a new host (human or animal). As always, hundreds of thousands of new viruses are produced, explains the fast spread.

how survive H1N1 without a host

Without a host, it will be difficult for the virus to survive:
At a temperature of 20 ° C, the virus is still 2 a.m. to 8 p.m. Hours "angetrocknet" survive.
At 22 ° C, it is only in excreta (feces) and tissues from deceased animals.
Water with a temperature of 0 ° C to 30 ° C hold it about 4 days on life.
In ice (below 0 ° C) is practically endless überlebensgefährlich.
Beyond 22 ° C, it will be difficult for the virus: it may be in excess of 56 ° C for only 3 hours to survive.
At 60 ° C died within 30 minutes.
From 70 ° C died from the virus.

Further information

Please also display the following H1N1 virus:



The information on this side is from press agencies and information sides from the Internet. Therefore we don't assume any liability for the correctness of the details. You should have troubles, consult you for her doctor in every case.



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