Our biggest concern right now is to treat patients with safe and effective medication and to avoid the emergence of drug resistance.

We are concerned about decreased sensitivity to the drug in Southeast Asia, which is the region that has traditionally been the birthplace of anti-malarial drug resistance.

We are working very diligently with keeping those airways open. Right now, that's my biggest concern.

It's a very powerful bull market right now. The real concern is whether OPEC can make up for any interruptions in supplies. The problem is that we've lost our security cushion. A potential loss in Iranian oil would be impossible to replace and could send oil to $100.

Right now my biggest concern is getting forces in place and getting this thing started.

Our grave concern right now is what we're seeing now is just the tip of the iceberg.