I think it is the right thing to do. I think the experience from the HIV epidemic is that intellectual property rights really slowed the delivery of antiretrovirals. We do have large production facilities at several places in the developing world that could ramp up if intellectual property rights were waived. There can be mandatory licensing. This should not affect the companies because they can be produced for distribution in the developing world exclusively at cost.
There can be, with mandatory licensing, some compensation to the companies. It's the right thing to do and it would protect us by having rollouts in countries that, for the foreseeable future, will not be able to pay the market price for these vaccines.