<p>Gene therapy using an&nbsp;<a href="https://en.wikipedia.org/wiki/Adenovirus" title="Adenovirus">adenovirus</a>&nbsp;vector. In some cases, the adenovirus will insert the new gene into a cell. If the treatment is successful, the new gene will make a functional&nbsp;<a href="https://en.wikipedia.org/wiki/Protein" title="Protein">protein</a>&nbsp;to treat a disease.</p>