Prioritizing Tuberculosis Clusters by Genotype for Public Health Action, Washington, USA
Scott Lindquist , Sheanne Allen, Kim Field, Smita Ghosh, Maryam B. Haddad, Masahiro Narita, and Eyal Oren
Author affiliations: Author affiliations: Kitsap County Health District, Bremerton, Washington, USA (S. Lindquist); Washington State Department of Health, Olympia, Washington, USA (S. Lindquist, S. Allen, K. Field); Centers for Disease Control and Prevention, Atlanta, Georgia, USA (S. Ghosh, M.B. Haddad); Public Health–Seattle & King County Tuberculosis Control Program, Seattle, Washington, USA (M. Narita, E. Oren).
Figure. . . Formula used to calculate geospatial statistic (a modified log-likelihood ratio [LLR]) on the basis of geographic distribution of Mycobacterium tuberculosis genotype clusters, Washington, USA. Variables are classified as follows: a = number of tuberculosis (TB) cases with the genotype of interest in the selected county; b = number of cases with the genotype of interest in the United States; c = number of cases without the genotype of interest in the selected county; d = number of cases without the genotype of interest in the United States; N = total number of TB cases.
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