Page "Biotechnology" Paragraph 64

As of June 2001, more than 500 clinical gene-therapy trials involving about 3, 500 patients have been identified worldwide.

Around 78 % of these are in the United States, with Europe having 18 %.

These trials focus on various types of cancer, although other multigenic diseases are being studied as well.

Recently, two children born with severe combined immunodeficiency disorder (" SCID ") were reported to have been cured after being given genetically engineered cells.