Figure 2
From: Epidemiological study on dengue in southern Brazil under the perspective of climate and poverty
Dengue virus isolation of the 249 serum samples positive for dengue (DV+). The top diagram (solid line) represents the 145 successful virus isolation samples, while the bottom diagram (dash-dotted line) represents the 104 negative isolation. The sets of serum samples positive for nonstructural protein 1 (NS1+) and immunoglobulin M (IgM+) are represented respectively by circles in red and green, whose areas are proportional to the number of patients. The sets of serum samples positive for immunoglobulin G (IgG+) are represented by blue dotted open circles.
