http://www.cdc.gov/flu/weekly/
Up until July 4 the CDC had only tested 264 Novel Influenza A (H1N1) isolates for oseltamivir and zanamivir resistance - many of which were probably done early in the outbreak.
Given that officially there are 34,000 lab confirmed cases in the US and probably a few 100,000 other cases, it is hardly surprising they have not picked up signs of tamifu resistance.
Mal
