(S (S (BASENP (DT The) (NN drug)) (VP (VP (VBZ exposes) (BASENP (DT the) (JJ inner) (JJ genetic) (NN material))) (PP (IN by) (S (VP (VP (VP (VP (VBG making) (BASENP (NNS holes))) (PP (IN in) (NP (BASENP (DT the) (NN coating)) (PP (IN of) (BASENP (DT the) (NN virus)))))) (S (VP (ADVP (RB essentially)) (VP (VBG causing) (S (BASENP (PRP it)) (VP (TO to) (VP (VB break) (PRT (RP down))))))))) (CC and) (VP (VBG disabling) (NP (BASENP (PRPD its) (NN ability)) (S (VP (TO to) (VP (VB be) (VP (VP (VBN passed) (PP (IN from) (BASENP (NN one) (NN human)))) (PP (TO to) (BASENP (DT the) (JJ next)))))))))))))) (PERIOD .))