Variation in the presence of neuraminidase genes among Streptococcus pneumoniae isolates with identical sequence

Melinda M Pettigrew1, Kristopher P Fennie, Matthew P York

  • 1Department of Epidemiology and Public Health, Yale University School of Medicine, 60 College Street, P.O. Box 208034, New Haven, CT 06520-8034, USA. melinda.pettigrew@yale.edu

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