Word: viruses
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...world in which superbugs can quickly go global. Bacteria may be resourceful things, but science, while slower, can be smarter. It's just a matter of knowing your enemy--and packing the right weapons. [This article contains a complex diagram. Please see hardcopy or pdf.] USING A VIRUS TO ATTACK BACTERIA 1 A bacteriophage is a virus that infects bacteria but not human cells...
...Afro-Caribbean residents believe that they can get HIV by stepping on a chicken bone that has a hex on it. "It was totally heartbreaking when I first came here, and talked to teenagers who have HIV," says Fried, a former Broadway actor who has been living with the virus for nearly twenty years and has seen 134 friends and acquaintances die from AIDS-related causes...
...from touching someone who is infected or breathing the air after they sneeze, and you can't get AIDS from a child who is infected with HIV. Fried, who is gay, also told them what it had been like to tell his conservative Jewish parents that he had the virus...
...took 15 years to get the right gene, to neutralize a virus that could carry it, and to prove - first in test tubes and then in live animals - that the procedure was safe enough for humans. Finally a young man named Robert Johnson got the first shot. A team of U.K. doctors announced earlier this month, that they put a needle through Johnson's eye, into his retina, to replace the faulty gene that had been blinding him for years...
...taken ingenuity. In patients like Robert Johnson, Ali delivers the functional gene using a virus that's been modified so it won't attack the eye or reproduce. The two trial subjects so far have not had severe immune responses to the new matter in their eyes - always a danger. Scientists are especially hopeful because the procedure worked so well in its animal trials. Scanning the eyes of dogs that underwent the procedure, researchers could see how the photoreceptor cells had changed. More important, the previously blind dogs could see well enough to navigate through a maze...