Table 2.1 Official cumulative numbers of confirmed cases in Italy, European region, USA and in
the world (without mainland China and South Korea), [1, 38]
Day in
February
and March,
2020
Time
moments
in days t j
Number
of cases
in Italy V j
European
Region
V Ej
USA,
V Uj
Global without cases in
mainland China and
South Korea V Gj
21
−1
9
54
35
1056
22
0
76
121
35
1167
23
1
124
169
35
1306
24
2
229
279
53
1482
25
3
322
379
53
1657
26
4
400
486
59
1898
27
5
650
798
59
2354
28
6
888
1107
62
2859
29
7
1128
1457
62
3433
1
8
1689
2136
62
4562
2
9
2036
2732
64
5753
3
10
2502
3367
108
7341
4
11
3089
4307
129
8993
5
12
3858
5820
148
11,197
6
13
4636
7491
213
14,347
7
14
5883
9453
213
17,593
8
15
7375
12,242
213
21,291
9
16
9172
15,130
472
25,265
10
17
10,149
18,124
696
29,609
11
18
12,462
23,112
987
36,410
12
19
15,113
28,892
1264
43,788
13
20
17660
36,263
1678
53,427
14
21
21,157
45,060
1678
64,304
15
22
24,747
55,623
1678
78,197
16
23
27,980
64,135
3503
89,680
17
24
31,506
74,703
3536
101,612
18
25
35,713
86,994
7087
120,173
19
26
41,035
104,425
10,442
144,121
20
27
47,021
128,434
15,219
175,858
21
28
53,578
151,173
15,219
201,747
22
29
59,138
171,226
31,573
242,368
23
30
63,927
195,261
42,164
281,973
24
31
69,176
220,249
51,914
323,194
10
2 Early Stages of Epidemics and Exponential Growth