“…The majority of studies employed multiple diagnostic assays to confirm the diagnosis of dengue, except for one study that did not specify the method used [ 39 ]. Warning signs or symptoms were reported as follows: skin bleeding (petechiae, purpura, hematoma) (9/15, 60.0%) [ 31 – 33 , 35 , 37 , 38 , 41 , 42 , 44 ], epistaxis (4/15, 26.7%) [ 31 – 33 , 41 ], hematemesis (3/15, 20.0%) [ 31 – 33 ], melena (3/15, 20.0%) [ 31 – 33 ], hepatomegaly (7/15, 46.7%) [ 33 , 34 , 37 , 38 , 41 , 42 , 44 ], abdominal pain (8/15, 53.4%) [ 33 – 38 , 41 , 42 ], vomiting and nausea (8/15, 53.4%) [ 33 – 38 , 41 , 42 ], diarrhea (4/15, 26.7%) [ 33 , 36 , 42 , 44 ], thrombocytopenia (4/15, 26.7%) [ 33 , 36 , 37 , 44 ], seizure (1/15, 6.7%) [ 33 ], bleeding gums (1/15, 6.7%) [ 32 ], pleural effusion (3/15, 20.0%) [ 33 , 42 , 44 ], ascites (1/15, 6.7%) [ 42 ], menorrhagia (1/15, 6.7%) [ 32 ] shock (1/15, 6.7%) [ 33 ], hemoconcentration (1/15, 6.7%) [ 33 ] and altered consciousness (1/15, 6.7%) [ 33 ].…”