Taipei - Taiwan Tuesday reported its first Tamiflu-resistant H1N1 flu case, but the patient recovered after continuous treatment, a senior official said.

The patient, a 20-year-old man based in southern Taiwan, was found to have contracted the pandemic influenza, also called swine flu, on September 1 and was given Tamiflu for treatment, Deputy Health Minister Chang Shan-chwen said.

The antiviral drug was found helpful to the man on the few days he was given the drug, but on September 4, viral samples showed the man had Tamiflu resistance, Chang said.

He said that because of continuous treatment and the man's own immune system, the patient recovered from the pandemic flu on September 20 and left the hospital where he had been treated and isolated.

Chang said his ministry reported the case to the World Health Organisation Tuesday, making the island the 11th area reporting a Tamiflu-resistant case, making it the first for Taiwan and the 36th for the 11 countries reporting such cases.(dpa)