Swine influenza virus could go into lungs

Human swine influenza (H1N1 influenza) outbreak, the U.S. Centers for Disease Control and Prevention reiterated many times swine flu is less lethal than seasonal influenza, people should not be too fightened.
But H1N1 influenza virus are not only not afraid of hot weather,
New research also shows it is much more harmful than expected, also large infiltration in the lungs of infected persons before a large number of breeding.


Adhesion nose and throat

The University of Wisconsin-Madison virologist Yoshihiro Kawaoka, the Professor, experiment on rats, monkeys and ferrets made them infected with swine influenza and seasonal influenza.
He found that seasonal influenza virus was found only in animal adhesion of the nose and other upper respiratory System. But the swine influenza virus can be found in-depth lung cells, and then a large-scale breeding, and made the infected person's lungs in severely damaged as well as pneumonia, and even death.
Kawaoka pointed out that the special attack of swine influenza infection in the lungs, was similiar as the Spanish flu pandemic which killed more than 6,000 million people in 1918.
The people whom born in 1918 was natural with antibody swine influenza, reflected the two viruses were similar.

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