( ( ( ( Persistence ( , ( ( latency and ) reactivation ) ) ) ( of ( Japanese ( encephalitis ( virus infection ) ) ) ) ) ( in mice ) ) . )
(ROOT (NP (NP (NN Persistence) (, ,) (NN latency) (CC and) (NN reactivation)) (PP (IN of) (NP (JJ Japanese) (NN encephalitis) (NN virus) (NN infection))) (PP (IN in) (NP (NNS mice))) (. .)))
Persistence, latency and reactivation of Japanese encephalitis virus infection in mice.
(ROOT (S (PP (IN After) (S (VP (VBG infecting) (NP (DT a) (NN host))))) (, ,) (NP (DT some) (NNS viruses)) (VP (VBP enter) (NP (NP (DT the) (JJ inactive) (NN state)) (PP (IN of) (NP (NN latency))))) (. .)))