Endurance, Refuge, and Reemergence of Dengue Virus Type 2, Puerto Rico, 1986–2007
Kate L. McElroy1, Gilberto A. Santiago1, Niall J. Lennon, Bruce W. Birren, Matthew R. Henn1, and Jorge L. Muñoz-Jordán1
Author affiliations: Author affiliations: Centers for Disease Control and Prevention, San Juan, Puerto Rico (K.L. McElroy, G.A. Santiago, J.L. Muñoz-Jordán); Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA (N.J. Lennon, B.W. Birren, M.R. Henn)
Figure A1. Dengue virus (DENV) serotype 2 case distribution, Puerto Rico, 1987–2006. Maps of Puerto Rico are shown as examples of distribution of total of DENV-2 cases reported on the island during 4 different years representing clade II expansion (1987) (A), clades II/I mixing (1995) (B), low evolution of subclade IB (2001) (C), and resurgence of subclade IB (D). All maps represent the 78 municipalities of Puerto Rico. White, 0–1 DENV-2 identifications; gray, 2–5 DENV-2 identifications; black, >6 DENV-2 identifications. Maximum number of identifications in any 1 municipality was 17.
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