so tamaflu is still saying in the after math of the release of this, that it is effective?o i asked you, is it? the question is it effective to reduce the outcomes that one cares about from a public health perspective. that's the question here. and that's like does it reduce death, and hospitalization. >> what's the answer. >> does it cut the spread of the virus. >> we found no credible evidence that it does those things. >> did your research find that tamaflu is potentially harmful? and does that potential harm outweigh the benefits of using the drug? a lot of the discussion talks about how effective it is, and so we did a systematic review of all the trials randomized trials out there, and to answer that, about benefits, and harms. on the harm side it is not a risk free drug. like nausea and vomiting. and then we did find significant increases when the drug is used for a much longer period of time. thicks like psychiatric disturbances and headaches. so if this drug isn't effective, how should we approach treating the flu in the future? there will be other outbreaks? well,