ZURICH, June 29 A patient with H1N1 influenza in
Denmark showed resistance to Roche Holding AG's ROG.VX
Tamiflu, the main antiviral flu drug, a company executive said
"While receiving the drug, the patient appeared to develop
resistance to it," David Reddy, Roche's pandemic taskforce
leader, told reporters on a conference call on the Danish case.
"This is the first report we have of it in H1N1."
The World Health Organisation has raised its pandemic flu
alert on the H1N1 flu virus to phase 6 on a six-point scale,
indicating the first influenza pandemic since 1968 is under way.
Common seasonal flu can resist Tamiflu and Reddy said a case
of resistance in H1N1 was not unexpected, adding Roche has been
working on strategies to counter such a development.
(Reporting by Sam Cage and Paul Arnold; Editing by David