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Comparison of human incidence of Rocky Mountain spotted fever and spotted fever group Rickettsia in Mexican states bordering the United States (including data from Baja California, Sonora, Chihuahua, Coahuila, and Nuevo Leon) and in Mexico as a country, 2009–2023. Denominators for population estimates were obtained from the National Population Council of Mexico (population projections 2000–2023).
