Instituto de Diagnóstico y Referencia Epidemiológicos(1) Salk(1) Regiones endémicas(1) public health surveillance(1) Historia de la medicina(1) Vaccine(1) vectors(1) Vectores(1) Indices of spatial autocorrelation(1) Instituto de Salubridad y Enfermedades Tropicales(1) Case fatality rate(1) Tasa de incidencia(1) Geospatial methods(1) Institute of Epidemiological Diagnosis and Reference(1) poliomyelitis(1) endemic regions(1) malaria(1) history of medicine(1) Sanitary and Tropical Diseases Institute(1) incidence rate(1) Tasa de letalidad(1) Epidemiological stratification of malaria(1)