(S (S (BASENP (NN Swine) (NN flu)) (VP (VP (VBZ has) (VP (ADVP (RB now)) (VP (VBN been) (VP (VBN circulated) (PP (IN in) (NP (BASENP (NN 46)) (PP (IN of) (BASENP (DT the) (NN 50) (NNP US) (NNS states))))))))) (CONJP (COMMA ,) (CC and)) (VP (VBZ has) (VP (VP (VBN resulted) (PP (IN in) (NP (QP (ADVP (IN at) (JJS least)) (NN 411)) (BASENP (VBN confirmed) (NNS deaths))))) (PP (IN since) (NP (BASENP (DT the) (NN end)) (PP (IN of) (BASENP (NNP August))))))))) (PERIOD .))