Any organism (such as a virus or a bacterium) that is capable of being communicated by invasion and multiplication in body tissues and capable of causing disease or adverse health impacts in humans.
(a bacterium; is; capable of being communicated by invasion and multiplication in body tissues and capable of causing disease or adverse health impacts in humans)
a bacterium
is
capable of being communicated by invasion and multiplication in body tissues and capable of causing disease or adverse health impacts in humans