( ( Pathogen ( ( A ( bacterium ( , ( virus ( or ( other micro-organism ) ) ) ) ) ) ( that ( can ( cause disease ) ) ) ) ) . )
(ROOT (S (VP (VB Pathogen) (NP (NP (DT A) (NN bacterium) (, ,) (NN virus) (CC or) (JJ other) (NN micro-organism)) (SBAR (WHNP (WDT that)) (S (VP (MD can) (VP (VB cause) (NP (NN disease)))))))) (. .)))
Pathogen A bacterium , virus or other micro-organism that can cause disease.
(ROOT (S (NP (NNS Pathogens)) (VP (VBZ is) (NP (NP (DT the) (NN term)) (PP (IN for) (NP (JJ disease-causing) (NNS agents))) (, ,) (PP (JJ such) (IN as) (NP (NNS bacteria) (CC and) (NNS viruses))))) (. .)))