Fig. 1.
Two public policies of SARS-CoV-2 containment: full lockdown (A) and no-lockdown (B). The latter represents a “bicycle wheel” where every knot (state) is connected with all other knots (states), with intensity coefficients λij, i and j are running from 0 to 12: Home {0} – Pharmacy {1} – Grocery store {2} – Walk with an animal {3} – Walk anywhere with several people together {4} – Public transport {5} – Public gatherings, excluding mass gatherings {6} – Cafés, restaurants {7} – Hospitals, medical institutions {8} – Offices, working places {9} – Asylums, orphanages, hospices {10} – Weekend limited gatherings, camps on nature (e.g. school, university, corporate etc.) {11} – Educational institutions (schools, universities, training programmes etc.) [12}. For simplicity of the figure, full sets of arrows are shown only for knots 1 and 2.