Trained assassins

2019-03-07 07:09:02

By Mark Schrope in Orlando, Florida INSTEAD of giving people antibiotics, doctors may soon give them a dose of genetically engineered superviruses instead. Researchers have turned the natural viruses that infect bacteria into much more efficient killers. Such viruses, or bacteriophages, are harmless to humans. They only attack specific bacteria, into which they inject their genetic material, forcing the cells to make more viruses. Eventually, the infected cells burst open, releasing all the new viruses. Since the 1920s, phages have been used to treat infections in people,