Ebola + HIV = Great Gene Therapy?

Artifice_Eternity writes: "This NY Times article describes a new gene therapy technique, built from two of the most feared diseases known to humankind. The Ebola and HIV virii each possess qualities that are useful in getting new genes into the body, to replace defective ones. Researchers at the University of Pennsylvania's Institute for Human Gene Therapy have snipped out bits from each virus, and successfully used their hybrid virus to deliver a marker gene to mice, by spraying it into their respiratory tracts. This could prove useful in treating cystic fibrosis and other genetically-caused lung diseases. Here's the IHGT's own page on the project. But: here's a Washington Post article from March on the same topic, featuring skeptical comments from Dr. Robert Gallo, co-discoverer of HIV. Gallo fears that such a hybrid could potentially combine with 'wild HIV' to produce a new contagion (airborne HIV, anyone? *cough*)."