many articles surfacing on tamiflu resistance, page-20

In the interests of attempting to make available some facts - Wikipedia (I know it is not infallible, but is probably more reliable than most info out there in the ether) has the following to say about Relenza verses Tamiflu.

"Tamiflu, Relenza’s main competitor, was proven in 2006[citation needed] not to be as effective at treating the Influenza viruses as Relenza".

The more recent news reports seem to be increasingly be reporting a turn towards Relenza, so it does seem reasonable to expect increasing interest in Biota.