Fig. 4.

(Color Online) Simulated air streamlines originating from the air conditioning units in the restaurant using computational fluid dynamics. The index case A1 is shown in purple, other infected patients in red, and non-infected in gold. The streamlines are colored by the concentration of predicted infectious droplet nuclei, with red the highest and blue the lowest. (A) 3D view and (B) top view. (For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article.)