an agent that causes disease, especially a living microorganism such as a bacterium or fungus
A microscopic organism or virus directly capable of causing disease Pathogéne
A pathogen is any organism which can cause disease in a person, animal, or plant. something that causes disease in your body (pathos ( PATHOS) + -gen )
Microscopic parasite organism that causes disease in a host Disease causes the host to be less fit and may eventually cause premature death
An organism (e g bacteria, viruses, parasites and fungi) that cause disease in human beings