Who discovered the human immunity defense sistem?
We now know that the reason we don t get really sick everyday from a cold is that we have a immunity defense sistem that fight off any harm bacteria that might cause cold and even cancer,and to increase our immunity defense sistem is to add extra vitamins.That far is what you and i know,but who discovered the existence of the human immunity defense sistem,or when?Only you know that...please share!
- Anonymous9 years agoFavorite Answer
The first written descriptions of the concept of immunity may have been made by the Athenian Thucydides who, in 430 BC, described that when the plague hit Athens “the sick and the dying were tended by the pitying care of those who had recovered, because they knew the course of the disease and were themselves free from apprehensions. For no one was ever attacked a second time, or not with a fatal result”.
The first clinical description of immunity which arose from a specific disease causing organism is probably Kitab fi al-jadari wa-al-hasbah (A Treatise on Smallpox and Measles, translated 1848) written by the Islamic physician Al-Razi in the 9th century. In the treatise, Al Razi describes the clinical presentation of smallpox and measles and goes on to indicate that that exposure to these specific agents confers lasting immunity (although he does not use this term).
However, it was with Louis Pasteur’s Germ theory of disease that the fledgling science of immunology began to explain how bacteria caused disease, and how, following infection, the human body gained the ability to resist further infections.