title: Dengue fever/dengue haemorrhagic fever surveillance. 1991.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D003715:Dengue / Q000453:epidemiology* / Q000517:prevention & control; D005260:Female; D006801:Humans; D015994:Incidence; D007223:Infant; D008297:Male; D012846:Singapore / Q000453:epidemiology