( Pathogens ( ( -LRB- ( ( ( bacteria and ) viruses ) -RRB- ) ) ( that ( ( cause disease ) . ) ) ) )
(ROOT (S (NP (NNS Pathogens)) (PRN (-LRB- -LRB-) (NP (NP (NNS bacteria)) (CC and) (NP (NNS viruses))) (-RRB- -RRB-)) (NP (DT that)) (VP (VBP cause) (NP (NN disease))) (. .)))
Pathogens (bacteria and viruses) that 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))))) (. .)))