FIGURE 1.

Illustration of complete incubation period and forward time Note. Red circle: getting infected; blue column: departure from Wuhan; red cross: symptoms onset. The shaded area is the period during which our cohort sample departed from Wuhan. This figure shows five types of individuals. Only those who departed from Wuhan in the shaded area were collected in our cohort. (A) Symptoms onset in Wuhan, not in our cohort; (B and C) captured in our cohort with infection before departure; (D) captured in our cohort with infection at departure; (E) infection outside Wuhan, not in our cohort. This figure appears in color in the electronic version of this paper, and any mention of color refers to that version.