It's neither. Anorexia is a loss of appetite, often linked to psychological disorders such anorexia nervosa.
It's not actually a virus or bacteria, it's a mental disorder. So it can't be spread! Yay ^^
You cannot "catch" anorexia. It is not an infection like a virus that can be passed on from one person to another.
Bacteria and virus
Smallpox was a virus.
virus
a bacteria. the bacteria that causes pneumonia is called pneumoniae.
Bacteria Virus
Virus
Virus
virus
Virus
Mutations of Bacteria from Virus Sensitivity to Virus Resistance was created in 1943.