Volume 15, Number 4—April 2009
Research
Novel Type of Streptococcus pneumoniae Causing Multidrug-Resistant Acute Otitis Media in Children
Figure 1

Figure 1. Neighbor-joining tree of genetic relatedness among 40 Streptococcus pneumoniae isolates from a private pediatric practice, Rochester, New York, USA, 2004–2006. Scale bar indicates genetic linkage distance.