Table 3. Duration of exposure and mortality rates in different countries due to COVID-19 on 28^th March, 2020.

Country	Total Cases	Total Deaths	Duration of exposure (28th March, 2020)	Mortality rate π	Category#
Germany	48582	325	61	0.007	I
China	82213	3301	89	0.040	II
World	591971	27090	89	0.046	II
France	32964	1995	64	0.061	III
Iran	32332	2378	38	0.074	III
Italy	86498	9136	58	0.106	III
Spain	64059	4858	57	0.076	III
United Kingdom	14543	759	58	0.052	III

# Category I if π ≤ 2%; Category II if π (2–5)%; Category III if π > 5%;