The idea of treating diseases by fixing faulty genes was big in the late 90s, but then suffered some serious setbacks. Thanks to new vectors and a broader spectrum of disease targets, the approach is now making a comeback and one treatment has already gained official approval in the EU.
Read all about it in my latest feature:
New hopes for gene therapy
Current Biology Volume 24, Issue 20, pR983–R986, 20 October 2014
The book of life - a printout of the human genome on display at the Wellcome Collection, London. Own photo. (I was considering to use this picture with the feature, but didn't have space for it in the end.)