BSE is a fairly unique disease because the infectious agent is a misfolded protein called a prion, rather than a separate particle or living organism. Every cow naturally has the proteins that can become misfolded, but it is rare for the protein to become a prion.
It is virtually untraceable by the body's antigens and white blood cells. It can pass through the system without being caught as a foreign body, unlike that which typically occurs with bacteria and viruses. Also, prions are extremely tiny, 1000 times smaller than the smallest bacterium body.
A viroid is an infectious agent that consists of a small strand of RNA and that causes disease in plants.
Its called "pathogen".
A pathogen or infectious agent is a biological agent that causes disease or illness to its host.
It is clear that Creutzfeldt-Jakob disease is caused by an infectious agent, but it is not yet clear what type of agent that is.
An infectious agent is a pathogen (germ). There are six kinds of infectious agents.Here they are listed:BactiriaVirusFungiHelminthPrionProtizoa.
The bacterium that causes and spreads the Cholera disease is Vibro Cholerae.
True
True
True
yes
Pathogen.
Alzheimer's Disease is not known to be caused by an infectious agent. The disease's cause is still being investigated. Even if it were caused by an infectious agent, it would not likely be used for bioterrorism because the disease process tends to be slow.