Slow blood flow can occur if there is a narrowing of the blood vessel. This can obstruct the flow. One common cause is atherosclerosis. There are deposition of cholesterol or lipids in the wall of the arteries which can narrow it. Other causes can be an inflammation. In the veins there can be slow flow where there is difficulty in pumping blood from legs towards the heart. If you feel any symptom, you should get an examination you need to get it checked by doctor. Any query, please feel free to ask.
Retroviruses belong to the Retroviridae family of viruses. Their genetic material consists of ribonucleic acid (RNA), instead of deoxyribonucleic acid (DNA). Viruses of this type also contain reverse transcriptase. Retroviruses are known to lead to certain types of cancers in both humans and animals, as well as a range of viral infections. Human Immunodeficiency Virus (HIV), the virus that causes Acquired Immune Deficiency Syndrome (AIDS), is one example.
A retrovirus is a type of virus that is used in gene therapy. This is a virus that inserts its genetic code directly into the chromosomes of the host cell (PBS). Other viruses are used for different kinds of genetic problems.his type of gene therapy does not prevent the disease from occurring in the next generation because it does not affect the sperm and egg cells. Somatic cell gene therapy only effects the other body cells.