Table S1.
Daily cases, deaths, and tests (swabs) collected from the Reports of the Italian National Institute of Health (ISS).
| Date | Daily cases | Daily deaths | Daily tests |
| 20-Feb | 0 | 0 | |
| 21-Feb | 17 | 0 | |
| 22-Feb | 47 | 1 | |
| 23-Feb | 90 | 2 | |
| 24-Feb | 72 | 4 | 4324 |
| 25-Feb | 94 | 4 | 4299 |
| 26-Feb | 147 | 1 | 964 |
| 27-Feb | 185 | 5 | 2427 |
| 28-Feb | 234 | 4 | 3681 |
| 29-Feb | 239 | 8 | 2966 |
| 01-Mar | 573 | 12 | 2466 |
| 02-Mar | 335 | 11 | 2218 |
| 03-Mar | 466 | 27 | 2511 |
| 04-Mar | 587 | 28 | 3981 |
| 05-Mar | 769 | 41 | 2525 |
| 06-Mar | 778 | 49 | 3997 |
| 07-Mar | 1247 | 36 | 5703 |
| 08-Mar | 1492 | 133 | 7875 |
| 09-Mar | 1797 | 97 | 3889 |
| 10-Mar | 1577 | 168 | 6935 |
| 11-Mar | 1713 | 196 | 12393 |
| 12-Mar | 2651 | 189 | 12857 |
| 13-Mar | 2547 | 250 | 11477 |
| 14-Mar | 3497 | 175 | 11682 |
| 15-Mar | 3590 | 368 | 15729 |
| 16-Mar | 3385 | 349 | 13063 |
| 17-Mar | 3374 | 345 | 10695 |
| 18-Mar | 4207 | 475 | 16884 |
| 19-Mar | 5322 | 427 | 17236 |
| 20-Mar | 5986 | 627 | 24109 |
| 21-Mar | 6557 | 793 | 26336 |
| 22-Mar | 5560 | 651 | 25180 |
| 23-Mar | 4790 | 601 | 17066 |
| 24-Mar | 5249 | 743 | 21496 |
| 25-Mar | 5210 | 683 | 27481 |
| 26-Mar | 6153 | 712 | 36615 |
| 27-Mar | 5909 | 919 | 33019 |
| 28-Mar | 5974 | 889 | 35447 |
| 29-Mar | 5217 | 756 | 24504 |
| 30-Mar | 4050 | 812 | 23329 |
| 31-Mar | 4053 | 837 | 29609 |
| 01-Apr | 4782 | 727 | 34455 |
| 02-Apr | 4668 | 760 | 39809 |
| 03-Apr | 4585 | 766 | 38617 |
| 04-Apr | 4805 | 681 | 37375 |
| 05-Apr | 4316 | 525 | 34237 |
| 06-Apr | 3599 | 636 | 30271 |
| 07-Apr | 3039 | 604 | 33713 |
| 08-Apr | 3836 | 542 | 51680 |
| 09-Apr | 4204 | 610 | 46244 |
| 10-Apr | 3951 | 570 | 53495 |
| 11-Apr | 4694 | 619 | 56609 |
| 12-Apr | 4092 | 431 | 46720 |
| 13-Apr | 3153 | 566 | 36717 |
| 14-Apr | 2972 | 602 | 26779 |
| 15-Apr | 2667 | 578 | 43715 |
| 16-Apr | 3786 | 525 | 60999 |
| 17-Apr | 3493 | 575 | 65705 |
| 18-Apr | 3491 | 482 | 61725 |
| 19-Apr | 3047 | 433 | 50708 |
| 20-Apr | 2256 | 454 | 41483 |
| 21-Apr | 2729 | 570 | 52126 |
| 22-Apr | 3370 | 401 | 63101 |
| 23-Apr | 2646 | 464 | 66658 |
| 24-Apr | 3021 | 420 | 62447 |
| 25-Apr | 2357 | 415 | 65387 |
| 26-Apr | 2324 | 260 | 49916 |
| 27-Apr | 1739 | 333 | 32003 |
| 28-Apr | 2019 | 382 | 57272 |
| 29-Apr | 2086 | 323 | 63827 |
| 30-Apr | 1872 | 285 | 68456 |
| 01-May | 1965 | 269 | 74208 |
| 02-May | 1900 | 474 | 55412 |
| 03-May | 1389 | 174 | 44935 |
| 04-May | 1221 | 195 | 37631 |
| 05-May | 1075 | 236 | 55263 |
| 06-May | 1444 | 369 | 64263 |
| 07-May | 1401 | 274 | 70359 |
| 08-May | 1327 | 243 | 63775 |
| 09-May | 1083 | 194 | 69171 |
| 10-May | 802 | 165 | 51678 |
| 11-May | 744 | 179 | 40740 |
| 12-May | 1402 | 172 | 67003 |
| 13-May | 888 | 195 | 61973 |
| 14-May | 992 | 262 | 71876 |
| 15-May | 789 | 242 | 68176 |
| 16-May | 875 | 153 | 69179 |
| 17-May | 675 | 145 | 60101 |
| 18-May | 451 | 99 | 36406 |
| 19-May | 813 | 162 | 63158 |
| 20-May | 665 | 161 | 67195 |
| 21-May | 642 | 156 | 71679 |
| 22-May | 652 | 130 | 75380 |
| 23-May | 669 | 119 | 72410 |
| 24-May | 531 | 50 | 55824 |
| 25-May | 300 | 92 | 35241 |
| 26-May | 397 | 78 | 57674 |
| 27-May | 584 | 117 | 67324 |
| 28-May | 593 | 70 | 75893 |
| 29-May | 516 | 87 | 72135 |
| 30-May | 416 | 111 | 69342 |
| 31-May | 333 | 75 | 54118 |
| 01-Jun | 200 | 60 | 31394 |
| 02-Jun | 319 | 55 | 52159 |
| 03-Jun | 322 | 71 | 37299 |
| 04-Jun | 177 | 88 | 49953 |
| 05-Jun | 519 | 85 | 65028 |
| 06-Jun | 270 | 72 | 72485 |
| 07-Jun | 197 | 53 | 49478 |
| 08-Jun | 280 | 65 | 27112 |
| 09-Jun | 283 | 79 | 55003 |
| 10-Jun | 202 | 71 | 62699 |
| 11-Jun | 380 | 53 | 62472 |
| 12-Jun | 163 | 56 | 70620 |
| 13-Jun | 347 | 78 | 49750 |
| 14-Jun | 337 | 44 | 56527 |
| 15-Jun | 301 | 26 | 28107 |
| 16-Jun | 210 | 34 | 46882 |
| 17-Jun | 329 | 43 | 77701 |
| 18-Jun | 332 | 66 | 58154 |
| 19-Jun | 251 | 47 | 57541 |
| 20-Jun | 264 | 49 | 54722 |
| 21-Jun | 224 | 24 | 40545 |
| 22-Jun | 221 | 23 | 28972 |
| 23-Jun | 113 | 18 | 40485 |
| 24-Jun | 190 | 30 | 53266 |
| 25-Jun | 296 | 34 | 56061 |
| 26-Jun | 255 | 30 | 52768 |
| 27-Jun | 175 | 8 | 61351 |
| 28-Jun | 174 | 22 | 37346 |