a vector
A pathogen is an organism that can cause a disease.
Pathogen.
It will have no direct effect on the organism ::x: It will cause a disease in the organism.
It will have no direct effect on the organism ::x: It will cause a disease in the organism.
Pathogenicity is the ability of an organism to cause disease.
A disease causing organism is called a pathogen.
vector
No, but it is caused by an organism. Influenza is the name of the infectious disease that certain viruses cause in people and other animals. The virus that causes the flu is the organism, and influenza is the disease the organism causes.
A parasite is an organism that lives in or on another organism (host) and benefits at the expense of the host's health or resources. Parasites can cause harm to their hosts by causing disease or feeding on their tissues.
This is called a parasite. They can be a fungus such as ringworm or toenail fungus. They can be bacteria that cause disease such as cholera, pneumonia or the plague. They also can be tapeworms.
They are called carrier's.
I think you are referring to a bacteria or virus.