(S (S (PP (IN Despite) (S (VP (VBG being) (VP (VBN detected) (PP (IN in) (BASENP (NNS humans))))))) (COMMA ,) (S (BASENP (DT no) (NN evidence)) (VP (VBZ has) (VP (VP (VBN turned) (PRT (RP up))) (S (VP (TO to) (VP (VB suggest) (SBAR (IN that) (S (BASENP (DT the) (NN virus)) (VP (MD can) (VP (VB be) (VP (VP (VP (VBN spread) (ADVP (RB easily))) (PP (IN from) (BASENP (NN human)))) (PP (TO to) (BASENP (NN human))))))))))))))) (PERIOD .))