Scientists have had a remarkable technique available to them in the last few years. A new editing system called CRISPR-Cas (biologists like acronyms as much as anyone) has made it possible to accurately change the genetic code – like guiding a pair of scissors to exactly the right spot in a text.
This technology has been used to heal genetic disease in children, such as Daniel who suffered from Wiskott-Aldrich Syndrome. Cells were taken from his bone marrow and cultured in the lab, the faulty genes were replaced, and the ‘healed’ cells were put back into his body. Daniel has not suffered from the severe asthma and inability to fight infections that afflicted his older brother, and he is now alive and well aged 18. Continue reading