pathogen
No. They are microorganisms that cause disease.
etiology is the study of the origin of diseases.
a vector
Organisms which are causing disease are called pathogens. Bacteria viruses
Pathogens
Hyperkalemia can also be caused by a disease of the adrenal gland called Addison's disease.
IdiopathicFrom http://en.wiktionary.orgAdjectiveidiopathic(pathology) Of, relating to, or designating a disease having no known cause.
The disease causing microbes are called pathogens.
cause no ones knows about it
Bartonella quintana can cause a disease called trench fever.
A low amount of vitamin E and too much fat in the diet can cause what is called crazy chick disease.
Etiology is the study of the cause of a disease.