(S (S (BASENP (DT The) (NNS cases)) (VP (VP (VBP are) (NP (BASENP (DT the) (JJ first) (NNS infections)) (PP (IN of) (BASENP (NN race) (NNS horses))))) (COMMA ,) (PP (IN despite) (S (VP (VP (VBG infecting) (NP (BASENP (NNS dozens)) (PP (IN of) (BASENP (JJ recreational) (NNS horses))))) (PP (IN across) (BASENP (NNP NSW) (CC and) (NNP Queensland)))))))) (PERIOD .))