27/11/2009 Two patients who were infected by a swine flu mutation that was also recently detected in Norway have died in France, health officials here said Friday. "This mutation could increase the ability of the virus to affect the respiratory tracts and, in particular, the lung tissue," said a statement from the government's Health Surveillance Institute (InVS).
 
"For one of these patients, this mutation was accompanied by another mutation known to confer resistance to oseltamivir," it added, referring to the main drug being used to treat swine flu, under the brand name Tamiflu.