Word: infectivity
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Frank McCormick was flying home from a meeting on cancer genetics when a wild idea popped into his head. What if you could make a virus that would infect-and kill-cancer cells but leave healthy cells intact? The next day, McCormick excitedly explained his notion to colleagues at Onyx Pharmaceuticals, a biotech company he had founded earlier that year. Some of them were as enthusiastic as he was. Others told him he was crazy; such a treatment couldn’t possibly work...
...example, one viral technique involves introducing a changed gene that can infect all cells in the body, not just targeted organs...
...tears in the fabric for their own benefit or self-expression and those who try to protect themselves against such opportunists. E-mail, despite what we may think about it, demonstrates both sides of this: On the one hand, viruses can append themselves to outgoing e-mails to infect other computers; on the other, it can be imperceptibly scanned after it leaves the author's computer. This assumption of trust is the virus programmer's window of opportunity to do any number of nasty things...
While computer viruses are prevalent, Osterberg said HASCS only issues warnings when a virus threatens to infect much of the campus...
...avoid becoming just another environmental headache, aquaculture needs standards. Raising fish species alien to the local habitat should be discouraged, since escapees can drive out native fish or infect them with disease. Penning fish in open waterways is also problematic. Even when the impact on the environment is minimized--as it is with well-run Maine salmon farms--rows of large fish corrals in natural waterways can be eyesores. Fish farming is best done in indoor, onshore facilities. The fish rarely escape, and the wastewater can be treated before being released. Growing vegetarian species such as tilapia is ideal, since...