(S (S (S (BASENP (DT The) (NN virus)) (VP (ADVP (RB also)) (VP (QT (DQL ``) (VP (VBZ spreads) (ADVP (RB fast))) (DQR '')) (CC and) (VP (VBZ has) (VP (VBN covered) (NP (DT a) (QT (DQL ``) (BASENP (JJ big) (JJ geographic) (NN region)) (DQR '')))))))) (PP (VBG according) (PP (TO to) (BASENP (JJ Chinese) (NN health) (NNS officials))))) (PERIOD .))