Figure 1.

Timeline of the dengue outbreak, northern Italy, 2020. Each case is indicated in rows. P represents the primary case; F1–F6 represent household contacts of P; A1 and A2 and B1–B3 represent two clusters epidemiologically-linked to P and F1–6. Each line represents a day, from July 27th to November 1st, 2020. Date of relevant events, such as the arrival in Italy of the primary case, symptom onset, laboratory diagnosis, probable exposure of a dengue case who was not resident in the affected area, duration of DENV-1 RNA detection in blood and urine, and vector control interventions and indicated in the figure.