You're right -- HIPAA et al only cover data that could be traced back to the individual, and this set clearly cannot.
Interestingly, there was a similar dataset presented at PSB (pacific symposium on biocomputing) of colocalizations of symptoms together with drugs in Bing queries attempting to find novel drug side effects. They too had no problem releasing the data.
Interestingly, there was a similar dataset presented at PSB (pacific symposium on biocomputing) of colocalizations of symptoms together with drugs in Bing queries attempting to find novel drug side effects. They too had no problem releasing the data.