New Swine Flu Strain

A new swine flu strain has been discovered in the United States and the U.S. Centers for Disease Control and Prevention (CDC) are working on a new vaccine against the strain, named A(H3Ns)v. It is a variant of the A(H3N2) virus, which is known for its ability to sicken people and 12 Americans suffered from the swine influenza in the U.S. since July 2011, the agency said in a press release.

New Swine Flu

The new swine flu strain have sickened people in Indiana, Iowa, Maine, Pennsylvania and West Virginia, while all patients infected with the virus variation have recovered successfully. Nevertheless, drug manufacturers are expected to start developing a vaccine against the A(H3Ns)v after the CDC has prepared a “seed virus”, CDC spokesman Thomas Skinner said. According the various reports, the seasonal influenza vaccine for 2011-2012 is not able to provide high enough level of protection against the new virus variant.

The A(H3N2)v strain is not spreading freely from human to human, experts said, adding that human-to-human is not characteristic for some variations of the swine flu virus. People should be aware that the trivalent seasonal vaccine protects only against the 2009 pandemic virus, the regular A(H3N2) virus, and an influenza B strain, while protection against the new swine flu strain is still in its earliest stage of development.


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