- A cause of some infectious diseases - Disease carrier - Harmful computer program - Infective agent - Source of infection - Contagious or poisonous matter, as of specific ulcers,
the bite of snakes, etc.; -- applied to organic poisons. - The special contagion, inappreciable to the senses and
acting in exceedingly minute quantities, by which a disease is
introduced into the organism and maintained there.
- Bacterium - Bug - General manager coming to grips with hesitation for initial stage - German ripping off an original source - Microbe - microscopic organism - minute life form