resistance. in developing countries, there are other issues as well. questions of whether we can reach the last mile. questions of citizen education and whether they even know where to go and whether there are places that render those vaccines accessible to them. but you're right, that hesitancy is cropping up as a significant issue. because over the last year there hasn't been adequate supply in so many parts of the world, vaccine disinformation that we see and our own ecosystem has had a chance to proliferate without their big leaders at the pulpit saying no, these vaccines work. look at the rates. look at what they're doing. look at how hospitalizations are down. that is a bit happening. because there wasn't an adequate supply of vaccines. now that we are meeting supply needs in many, many parts of the world, thanks to the generosity of our the american people, and their donation of what will be 1.2 billion doses donated by the united states, now we are starting to see