Virologically controlled research focuses on studying and understanding how viruses can be used to control and manipulate biological systems. This research area involves the development and application of viral vectors, which are viruses that have been modified to deliver specific genes or proteins into cells. Virologically controlled research is commonly used in areas such as gene therapy, vaccine development, and targeted cancer therapy. By harnessing the natural abilities of viruses, researchers aim to develop innovative approaches to regulate and modulate biological processes for therapeutic or research purposes.