Table 1.

Formulas for daily and annul risk calculations.

Event	Daily risk	Annual risk
Contacting at least one asymptomatic patient	1-(1-p0)n	1-(1-p0)yn
Getting infected without PPE	1-(1-p0p1)n	1-(1-p0p1)yn
Getting infected with PPE	1-[1-p0p1(1-e)]n	1-[1-p0p1(1-e)]yn
Becoming symptomatic with PPE	s{1-[1-p0p1(1-e)]n}	s{1-[1-p0p1(1-e)]yn}
Dying from the disease in age group a	das{1-[1-p0p1(1-e)]n}	das{1-[1-p0p1(1-e)]yn}