The first clinical gene therapy was done for the treatment of:
a. AIDS
b. Cancer
c. Cystic fibrosis
d. SCID (Severe Combined Immuno Deficiency resulting from deficiency of ADA)
The answer is the option (d) SCID (Severe Combined Immuno Deficiency resulting from deficiency of ADA)
Explanation: The first clinical gene therapy was given in 1990 to a 4-year-old girl with adenosine deaminase (ADA) deficiency.