Word: bacterias
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...scientists soon discovered, however, that giving away golden rice was not going to be easy. The genes they transferred and the bacteria they used to transfer those genes were encumbered by patents and proprietary rights. Only after extensive negotiations have the two scientists managed to strike a deal with Syngenta, Monsanto and the four other companies that held exclusive licenses to the technologies used by Potrykus and Beyer to create golden rice. In exchange for commercial marketing rights in the U.S. and other affluent markets, the companies recently agreed to donate the technology free to developing countries...
Antibodies are also being drafted to prod the immune system into attacking cancer cells. Clinicians have long dreamed of marshaling the body's own defenses to fight cancer, if only they could get the immune system to recognize cancer cells as easily as it spots foreign invaders such as bacteria and viruses. Researchers at Dendreon Corp. in Seattle have found a way to do just that by enlisting dendritic cells, some of the body's most potent immune stimulators...
However, as anyone who has wrestled with a persistent case of athlete's foot knows, it's not easy to root out a fungus once it's taken hold. Part of the problem is that fungi are complex organisms that have more in common with human cells than with bacteria or viruses; medications that are toxic to fungi are often just as toxic to humans...
...good news about fungi is that they are relatively stable. As recalcitrant as they are, they don't morph rapidly like bacteria into superstrains that are resistant to drug therapy. So once someone figures out how to control fungi, chances are they will remain at bay for a long time...
Like their predecessors, therapeutic vaccines stimulate the immune system. But there is a key difference. Instead of targeting invading viruses or bacteria, they mobilize the body against a homegrown menace: cells growing wildly out of control, usually as the result of a spreading cancer...