This video describes how viral vectors help in gene therapy, genetic engineering, and DNA vaccination. Viral vectors need to be highly pure for them to work effectively. Viral vector purification isolates the viral component of a mixture of DNA and protein. The goal is to produce a homogenous preparation of the desired virus. Video Source Viral vectors are viruses that deliver genetic material into cells. Viral vectors can be used to introduce various types of genetic material into cells. Viral vectors are useful for gene therapy because they can infect cells and deliver their payload without causing disease. Viral vectors …