Figure 2.

Procedure for testing, self-isolation and CTA notification. Once symptomatic agent i becomes aware of the disease, the agent seeks testing. If tests are available, the agent gets tested. Following a positive result the agent will self-isolate. Household members h of agent i will self-isolate with probability ${\omega }_h$ and relatives will be notified. If the agent is a pupil all classmates will self-isolate and seek testing. If agent i uses the CTA all the recorded contacts will be notified. When tests are unavailable, agent i will self-isolate with probability ${\omega }_i$. In case the agent self-isolates the aforementioned procedure of self-isolation will take place without the notification to CTA contacts. Otherwise the agent will continue as usual. Once CTA user j is notified, agent j will seek testing. If testing is unavailable, agent j may self-isolate with probability ${\omega }_j\ast \mathrm{\Omega }$.