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'Drug resistant' swine flu probed 'Drug resistant' swine flu probed
(about 1 hour later)
Health officials are investigating the possible person-to-person spread of a Tamiflu-resistant strain of swine flu.Health officials are investigating the possible person-to-person spread of a Tamiflu-resistant strain of swine flu.
The strain has infected a small number of patients at the University Hospital Wales, in Cardiff, all of whom had serious underlying health conditions.The strain has infected a small number of patients at the University Hospital Wales, in Cardiff, all of whom had serious underlying health conditions.
One patient apparently developed resistance to the antiviral drug, and the strain was then passed on to others at the hospital.One patient apparently developed resistance to the antiviral drug, and the strain was then passed on to others at the hospital.
If confirmed, this would be the first case of its kind in Europe.If confirmed, this would be the first case of its kind in Europe.
There have been several dozen reports around the world of people developing resistance to Tamiflu while taking the drug.There have been several dozen reports around the world of people developing resistance to Tamiflu while taking the drug.
But there has only been one case of person-to-person transmission of a Tamiflu-resistant strain, between two people at a US summer camp.But there has only been one case of person-to-person transmission of a Tamiflu-resistant strain, between two people at a US summer camp.
All the University Hospital Wales patients are said to be recovering in controlled environments - so there is no risk to anyone else.All the University Hospital Wales patients are said to be recovering in controlled environments - so there is no risk to anyone else.
And health officials say tests are being carried out to confirm exactly what happened.And health officials say tests are being carried out to confirm exactly what happened.
The UK has bought enough doses of Tamiflu, which can shorten the duration of swine flu and reduce the risk of complications, for half the population.The UK has bought enough doses of Tamiflu, which can shorten the duration of swine flu and reduce the risk of complications, for half the population.
And any spread of a Tamiflu resistant strain of the illness would be a serious public health concern.And any spread of a Tamiflu resistant strain of the illness would be a serious public health concern.
Professor Ian Jones, a virologist at the University of Reading, said: "As immunocompromised patients cannot easily shake the virus off there is ample time for a Tamiflu resistant mutant to arise.
"Generally such mutants are less fit than the parental virus and further transmissions rare unless to another similar immunocompromised individual.
"It is certainly something to watch but at the moment it would seem to be down to a very special set of circumstances rather than an emerging threat."