Substannces causing a violent reaction to the human immune system are called
Answers
alcohol or drugs can lead to considerable damage to many systems in the body, especially the immune system.
The human immune system renders protection from possibly harmful virus and bacteria like substances by capturing and responding to antigens. Antigens are generally proteins remains on the surface of cells, viruses, fungi, or bacteria.
Non-living things like as toxins, chemicals, drugs, and undesired particles such as a splinter can also act as antigens.
The immune system identifies and kills, or tries to destroy, substances containing antigens. Human body's cells have proteins which are antigens. These include a group of antigens termed as HLA antigens.
Our immune system learns to observe these antigens as normal cases and usually does not destroy them unless needed.