The first case of drug resistant swine flu has been reported by The Centers for Disease and Prevention. It was spotted at a summer camp in North Carolina in two girls, which is probably the first case of drug resistant swine flu that spread from one person to another.

Previously, nine cases of Tamilflu resistant cases have been reported in the United States but they were all isolated.

The recent case is worrisome because these two girls who were staying at a camp site were taking Tamiflu for protection but they still fell sick and tested positive when tested for swine flu. Infact they both had the swine flu virus with a mutation that seems to make it resistant to Tamiflu.

There is although no proof that the drug-resistance spread from one girl to another and it is possible that they developed this resistance independently. It's also possible that they got this drug-resistant virus from a third camper who wasn't tested for mutation.

All the staff and campers who had flu recovered without any complications and were given Tamiflu for protection.

The CDC also released new guidelines for giving Tamiflu and Relenza, which can be useful for treating and preventing swine flu. Experts have advised anyone with flu like symptoms to take these drugs nevertheless they should only be administered to people who are at a high risk of complications.