For example, studies in lung cancer research traditionally use one set of markers to identify their neutrophils of interest, whereas studies in infectious diseases use another set of markers; this is also the case for work on the role of neutrophils in both hematopoiesis and angiogenesis.15 19 Consequently, neutrophil subpopulations reported by different groups share individual features such as CD66b and/or CD15 but vary in regard to the assessment of other surface antigens. This evidence concerns the gene FUT4 and infectious disease.