1. Laboratory-confirmed dengue (521 patients), zika (227), chikungunya (759), yellow fever (25); co-infections: dengue/zika (1), dengue/chikungunya (12), zika/chikungunya (6), dengue/malaria (7) and chikungunya/malaria (11). 2. Lab-confirmed P. vivax (248), P. falciparum (97), P. malariae (3), P. ovale (5), mixed (P. vivax and P. falciparum) (2); co-infection malaria/dengue (7), co-infection malaria/chikungunya (11), not specified (5). 3. Lab-confirmed acute infection caused by Epstein-Barr Virus (EBV), cytomegalovirus (CMV), HIV or Toxoplasma gondii, resulting in acute infectious mononucleosis syndrome. 4. Includes common cold and acute bacterial rhinosinusitis. 5. Clinical or lab-confirmed bacterial pneumonia (15), bacterial pharyngitis/tonsillitis (11), secondary syphilis (9), urinary tract infection (7), tuberculosis (3), typhoid fever and sepsis (2), cholecystitis (3) and brucellosis (1). 6. Acute viral hepatitis (A and B) (11), parvovirus B19 (3), Varicella-Zoster infection (including chickenpox) (4), nonspecific viral meningitis (1).