( ( ( ( Any ( infectious agent ) ) , ) ( including ( bacterial ( , ( viral ( , ( ( rickettsial ( , ( protozoan ( , ( ( parasitic and ) chlamydial ) ) ) ) ) pathogens ) ) ) ) ) ) ) ( ( can ( cause ( follicular hyperplasia ) ) ) . ) )
(ROOT (S (NP (NP (DT Any) (JJ infectious) (NN agent)) (, ,) (PP (VBG including) (NP (JJ bacterial) (, ,) (JJ viral) (, ,) (ADJP (JJ rickettsial) (, ,) (JJ protozoan) (, ,) (JJ parasitic) (CC and) (JJ chlamydial)) (NNS pathogens)))) (VP (MD can) (VP (VB cause) (NP (NN follicular) (NN hyperplasia)))) (. .)))
Any infectious agent, including bacterial, viral, rickettsial, protozoan, parasitic and chlamydial pathogens can cause follicular hyperplasia.
(ROOT (S (NP (NNS Trichomoniasis)) (VP (VBZ is) (VP (VB cause) (PP (IN by) (NP (DT a) (NN protozoa))))) (. .)))