作者: Martha Betson , J. Russell Stothard
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摘要: To the Editor—We thank da Silva Alves et al [1] for their comments. As they rightly point out, species status of Ascaris lumbricoides and suum has been a matter debate some years [2]. We welcome widening discussion draw attention to another important milestone in study this parasite, publication book about Ascaris, edited by Celia Holland [3]. In volume, we elaborated on question, concluding that it all depends definition used [4]. For example, based phenetic concept, A. would belong same species. contrast, biological could be argued comprise 2 separate Confirmation entail experimental crosses, but what infections, hosts, parental isolates should used?