Volume 10, Number 3, March 2004

Correlating Epidemiologic Trends with the Genotypes Causing Meningococcal Disease, Maryland

M. Catherine McEllistrem,* John A. Kolano,* Margaret A. Pass,† Dominique A. Caugant,‡ Aaron B. Mendelsohn,* Antonio Guilherme Fonseca Pacheco,* Kathleen A. Shutt,* Jafar Razeq,§ Lee H. Harrison,*† and the Maryland Emerging Infections Program
*University of Pittsburgh, Pittsburgh, Pennsylvania, USA; †Johns Hopkins University Bloomberg School of Hygiene and Public Health, Baltimore, Maryland, USA; ‡World Health Organization Collaborating Centre for Reference and Research on Meningococci, Norwegian Institute of Public Health, Oslo, Norway; and §Maryland Department of Health and Mental Hygiene, Baltimore, Maryland, USA

Figure 2. Box-plot of mean pairwise similarities of serogroup C strains for persons <14 years of age (32 strains), persons ages 15–24 years (25 strains), and adults ages >25 years (14 strains) during 1992–1999. The lower, central, and upper horizontal lines in the box indicate the 25th, 50th, and 75th percentiles. The outliers, as defined as the 25th or 75th quartile ±1.5x the interquartile range, are plotted as circles. Notches of box plots that do not overlap indicate a statistically significant difference at the <0.05 level.

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This page last reviewed February 18, 2004

Emerging Infectious Diseases Journal
National Center for Infectious Diseases
Centers for Disease Control and Prevention