Researchers reconstruct 1918 flu virus
Like the 1918 virus, the current avian flu in Southeast Asia occurs naturally in birds. In 1918, the virus mutated, infected people and then spread among them. So far, the current Asian virus has killed at least 65 people but has rarely spread person-to-person.
But viruses mutate rapidly and it could soon develop infectious properties like those seen in the 1918 bug, said Dr. Jeffery Taubenberger of the U.S. Armed Forces Institute of Pathology.
"The effort to understand what happened in 1918 has taken on a new urgency," said Taubenberger, who led the gene-sequencing team.
The public health risk of resurrecting the virus is minimal, U.S. health officials said. People around the world developed immunity to the deadly 1918 virus after the pandemic, and a certain degree of immunity is believed to persist today. Also, in previous research, scientists concluded that modern antiviral medicines are effective against Spanish flu-like viruses.
The virus recreation, announced Wednesday, is detailed in the journal Science. The completion of that gene sequencing was announced in the journal Nature.
The virus was made from scratch, but based on a blueprint from Alaska.
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