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>> reporter: jon, cuban researchers have a lung cancer vaccine. and thanks to the unique partnership and cuban center of moleullar immunology. that vaccine could be available to patients here. not only treating lung cancer but prevent it. they are impressed with the cost-effective solutions that the cubans have developed out of necessity. >> they put a higher problem on public health. and they have to be innovative and very thoughtful of how to design the vaccines so they can be distributed toa as many people in cuba. >> it targeted the discussion and on the surface of the cancer, jon. it is s...

Cubans have created a drug that costs about a dollar per shot. which is unheard of. will the american market ruin it? >> well, i think it's a little bit early for us to talk about the commercialization potential in the united states and how much things would cost. but if one looks at the potential for prevention, one is talking maybe a dollar a dose, but maybe hundreds of millions of people that would be potential patients or people to get vaccinated. so i think that the economics of the issue i think are a little bit in the future. we'll have to see how the vaccine does in terms of its clinic...