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Weekly incidence of Covid-19

Weekly incidence of Covid-19: PCR/AT, confirmed cases, reproduction number and deaths Catalonia
PCR/AT tests performed Positive PCR/AT tests (%) Cases confirmed by PCR/AT PCR/AT confirmed case rate (per 100,000 inh.) Reproduction number (Rt) Deaths Total cases confirmed Total deaths
06/09/2021–12/09/2021 137,576 3.29 3,561 45.65 0.89 74 975,291 23,729
30/08/2021–05/09/2021 154,918 3.57 4,466 57.26 0.78 83 968,488 23,501
23/08/2021–29/08/2021 163,284 4.99 6,524 83.64 0.80 100 961,693 23,418
16/08/2021–22/08/2021 171,742 6.71 9,259 118.71 0.86 153 952,538 23,318
09/08/2021–15/08/2021 186,358 8.06 11,994 153.77 0.81 205 940,683 23,165
02/08/2021–08/08/2021 215,647 9.68 16,875 216.47 0.77 200 925,795 22,960
26/07/2021–01/08/2021 248,534 12.58 25,305 324.76 0.75 226 905,969 22,760
19/07/2021–25/07/2021 261,716 17.34 38,653 496.27 0.84 178 877,377 22,534
12/07/2021–18/07/2021 255,199 21.50 49,146 631.61 0.99 60 835,361 22,356
05/07/2021–11/07/2021 269,655 19.55 50,045 643.16 1.38 18 783,671 22,296
28/06/2021–04/07/2021 207,734 15.85 32,404 416.45 3.43 12 733,569 22,278
21/06/2021–27/06/2021 101,734 7.06 7,253 93.21 1.61 10 704,066 22,266
14/06/2021–20/06/2021 106,948 3.65 3,676 47.30 1.19 14 696,821 22,256
07/06/2021–13/06/2021 107,326 3.35 3,263 42.02 0.95 13 695,415 22,242
31/05/2021–06/06/2021 116,835 3.36 3,692 47.59 0.93 18 689,420 22,229
24/05/2021–30/05/2021 116,997 3.92 4,181 53.90 1.06 28 682,434 22,211
17/05/2021–23/05/2021 132,926 3.70 4,480 57.77 0.99 35 676,863 22,183
10/05/2021–16/05/2021 144,791 3.89 5,054 65.20 0.76 50 669,992 22,148
03/05/2021–09/05/2021 178,558 4.81 7,774 100.40 0.86 106 663,004 22,098
26/04/2021–02/05/2021 187,923 5.87 10,183 131.51 0.95 97 653,486 21,992
19/04/2021–25/04/2021 188,796 6.34 11,243 145.24 1.07 106 642,277 21,895
12/04/2021–18/04/2021 189,252 6.24 11,076 143.14 0.99 135 629,830 21,789
05/04/2021–11/04/2021 164,704 7.14 10,942 141.46 1.39 147 617,200 21,654
29/03/2021–04/04/2021 134,384 7.71 9,610 124.32 0.94 134 605,055 21,358
22/03/2021–28/03/2021 186,818 5.71 10,054 130.12 1.24 109 595,088 21,224
15/03/2021–21/03/2021 169,505 5.19 8,282 107.19 1.13 114 584,284 21,115
08/03/2021–14/03/2021 168,181 4.66 7,375 95.55 1.03 142 575,310 21,001
01/03/2021–07/03/2021 189,999 4.61 8,026 104.08 0.95 177 566,763 20,859
22/02/2021–28/02/2021 200,247 4.99 9,219 119.55 0.95 180 557,443 20,682
15/02/2021–21/02/2021 209,577 5.44 10,601 137.47 1.05 259 547,107 20,502
08/02/2021–14/02/2021 290,938 4.27 11,259 146.00 0.87 327 535,395 20,243
01/02/2021–07/02/2021 300,429 5.58 15,010 194.87 0.83 428 522,831 19,916
25/01/2021–31/01/2021 343,501 6.47 20,456 265.76 0.95 570 505,961 19,488
18/01/2021–24/01/2021 383,788 6.76 24,115 313.30 0.98 551 483,972 18,918
11/01/2021–17/01/2021 342,626 8.60 27,168 352.97 1.09 482 458,437 18,367
04/01/2021–10/01/2021 234,484 10.94 24,480 318.04 1.35 428 428,167 17,885
28/12/2020–03/01/2021 209,351 9.70 19,500 253.34 1.51 281 406,443 17,457
21/12/2020–27/12/2020 239,712 6.06 13,963 181.41 1.03 275 387,272 17,176
14/12/2020–20/12/2020 264,602 5.11 13,380 173.83 1.28 237 373,091 16,901
07/12/2020–13/12/2020 200,839 4.72 9,408 122.23 1.38 271 359,438 16,664
30/11/2020–06/12/2020 228,837 3.64 7,942 103.18 0.98 326 349,900 16,393
23/11/2020–29/11/2020 194,871 4.70 8,865 115.17 0.95 341 340,900 16,067
16/11/2020–22/11/2020 181,974 6.77 11,342 147.35 0.79 402 331,412 15,726
09/11/2020–15/11/2020 213,407 8.37 16,731 217.37 0.77 461 318,669 15,324
02/11/2020–08/11/2020 261,166 10.29 25,404 330.05 0.88 504 299,946 14,863
26/10/2020–01/11/2020 281,195 11.49 31,253 406.04 0.96 396 270,289 14,359
19/10/2020–25/10/2020 255,384 13.16 33,448 434.56 1.41 235 235,037 13,963
12/10/2020–18/10/2020 178,545 10.99 20,200 262.44 1.48 149 203,397 13,728
05/10/2020–11/10/2020 160,188 8.58 14,230 184.88 1.48 115 186,294 13,579
28/09/2020–04/10/2020 144,109 6.25 9,149 118.86 1.29 96 172,887 13,464
21/09/2020–27/09/2020 124,073 5.69 7,173 93.19 0.95 83 161,684 13,368
14/09/2020–20/09/2020 111,517 7.10 7,873 102.29 1.31 85 154,589 13,285
07/09/2020–13/09/2020 87,462 7.69 6,602 85.77 0.93 66 146,234 13,200
31/08/2020–06/09/2020 104,848 7.12 7,173 93.19 0.99 79 139,367 13,134
24/08/2020–30/08/2020 109,216 7.21 7,912 102.79 1.06 73 131,070 13,055
17/08/2020–23/08/2020 91,539 8.24 7,488 97.28 1.16 68 122,335 12,982
10/08/2020–16/08/2020 85,140 7.94 6,660 86.53 1.09 71 114,437 12,914
03/08/2020–09/08/2020 83,797 7.76 6,341 82.38 1.01 57 107,520 12,843
27/07/2020–02/08/2020 81,551 8.36 6,686 86.86 1.06 72 100,668 12,786
20/07/2020–26/07/2020 78,397 8.42 6,677 86.75 1.18 59 91,337 12,714
13/07/2020–19/07/2020 58,426 8.95 5,451 70.82 1.63 21 83,631 12,655
06/07/2020–12/07/2020 42,244 6.44 2,919 37.92 1.82 24 76,619 12,634
29/06/2020–05/07/2020 35,167 3.65 1,364 17.72 1.69 28 73,330 12,610
22/06/2020–28/06/2020 30,153 2.27 718 9.33 1.37 22 71,430 12,582
15/06/2020–21/06/2020 35,862 1.48 526 6.83 1.05 39 70,534 12,560
08/06/2020–14/06/2020 40,369 1.46 571 7.42 0.80 51 69,674 12,521
01/06/2020–07/06/2020 42,581 1.86 746 9.69 0.92 73 68,499 12,470
25/05/2020–31/05/2020 54,201 2.16 1,110 14.42 0.85 112 67,060 12,397
18/05/2020–24/05/2020 60,103 2.63 1,460 18.97 1.23 172 65,060 12,285
11/05/2020–17/05/2020 49,903 2.47 1,234 16.03 1.11 241 63,441 12,113
04/05/2020–10/05/2020 46,482 2.62 1,309 17.01 0.83 485 60,728 11,872
27/04/2020–03/05/2020 52,587 3.54 2,038 26.48 0.64 717 57,506 11,387
20/04/2020–26/04/2020 56,762 9.36 4,510 58.59 0.84 1,082 49,088 10,670
13/04/2020–19/04/2020 43,292 17.75 6,940 90.16 0.83 1,689 42,610 9,588
06/04/2020–12/04/2020 36,038 23.63 7,676 99.73 0.78 2,368 34,726 7,899
30/03/2020–05/04/2020 32,401 31.98 8,928 115.99 0.75 2,648 26,824 5,531
23/03/2020–29/03/2020 28,910 43.38 11,714 152.19 1.13 2,055 16,157 2,883
16/03/2020–22/03/2020 20,356 37.78 8,963 116.45 2.98 661 5,925 828
09/03/2020–15/03/2020 7,215 21.12 2,222 28.87 5.00 160 903 167
02/03/2020–08/03/2020 319 5.41 72 0.94 0.00 7 82 7
24/02/2020–01/03/2020 22 0.00 2 0.03 0.00 0 14 0
Source: Idescat, based on data from the Catalan Ministry of Health.
Weekly incidence of Covid-19: PCR/AT, confirmed cases, reproduction number and deaths Spain
PCR/AT tests performed Positive PCR/AT tests (%) Cases confirmed by PCR/AT and antibody test Rate of cases confirmed by PCR/AT and antibody tests (per 100,000 inh.) Reproduction number (Rt) Deaths Total cases confirmed Total deaths
06/09/2021–12/09/2021 586,797 5.10 22,673 48.21 .. 303 4,916,800 85,536
30/08/2021–05/09/2021 676,753 6.31 33,676 71.61 .. 439 4,894,127 85,233
23/08/2021–29/08/2021 718,045 8.78 50,963 108.37 .. 500 4,860,451 84,794
16/08/2021–22/08/2021 776,992 10.49 67,833 144.25 .. 595 4,809,488 84,294
09/08/2021–15/08/2021 881,878 12.13 89,755 190.86 .. 651 4,741,655 83,699
02/08/2021–08/08/2021 1,013,959 13.72 117,854 250.61 .. 525 4,649,319 82,971
26/07/2021–01/08/2021 1,170,590 15.13 155,628 330.94 .. 426 4,527,701 82,265
19/07/2021–25/07/2021 1,239,247 16.22 183,681 390.59 .. 290 4,371,545 81,636
12/07/2021–18/07/2021 1,169,764 15.64 173,888 369.77 .. 101 4,186,032 81,276
05/07/2021–11/07/2021 1,014,895 13.55 132,797 282.39 .. 65 4,012,144 81,175
28/06/2021–04/07/2021 780,417 9.75 77,478 164.75 .. 73 3,879,347 81,110
21/06/2021–27/06/2021 618,888 5.20 29,306 62.32 .. 101 3,801,869 81,037
14/06/2021–20/06/2021 612,551 4.17 23,345 49.64 .. 110 3,770,830 80,840
07/06/2021–13/06/2021 631,756 4.31 24,217 51.50 .. 123 3,747,485 80,730
31/05/2021–06/06/2021 666,089 4.58 28,422 60.44 .. 192 3,723,268 80,607
24/05/2021–30/05/2021 695,351 4.86 30,534 64.93 .. 160 3,694,846 80,415
17/05/2021–23/05/2021 723,295 4.97 32,420 68.94 .. 242 3,664,312 80,255
10/05/2021–16/05/2021 767,304 5.14 34,622 73.62 .. 312 3,631,892 80,013
03/05/2021–09/05/2021 805,363 5.90 41,895 89.09 .. 416 3,597,270 79,701
26/04/2021–02/05/2021 865,557 6.75 52,905 112.50 .. 405 3,555,375 79,285
19/04/2021–25/04/2021 867,759 7.35 57,807 122.93 .. 496 3,502,470 78,880
12/04/2021–18/04/2021 855,450 7.54 58,511 124.42 .. 535 3,444,663 78,384
05/04/2021–11/04/2021 811,139 7.98 59,481 126.48 .. 542 3,386,152 77,849
29/03/2021–04/04/2021 614,737 7.41 41,953 89.21 .. 456 3,318,623 76,800
22/03/2021–28/03/2021 785,645 5.98 41,388 88.01 .. 440 3,276,371 76,180
15/03/2021–21/03/2021 706,946 5.48 32,844 69.84 .. 508 3,236,019 75,601
08/03/2021–14/03/2021 735,665 5.35 31,305 66.57 .. 611 3,201,305 74,855
01/03/2021–07/03/2021 779,313 5.43 32,350 68.79 .. 847 3,169,845 74,191
22/02/2021–28/02/2021 802,195 6.41 37,590 79.93 .. 1,233 3,125,763 71,666
15/02/2021–21/02/2021 932,034 7.41 48,813 103.80 .. 1,487 3,098,613 70,818
08/02/2021–14/02/2021 1,275,269 8.16 74,213 157.81 .. 2,195 3,048,510 68,795
01/02/2021–07/02/2021 1,604,416 10.62 128,776 273.84 .. 2,876 2,971,961 65,657
25/01/2021–31/01/2021 1,779,251 13.56 199,689 424.63 .. 3,250 2,839,723 62,803
18/01/2021–24/01/2021 1,672,343 16.08 242,002 514.61 .. 2,943 2,640,034 59,553
11/01/2021–17/01/2021 1,385,937 17.50 231,107 491.44 .. 1,965 2,398,032 56,610
04/01/2021–10/01/2021 1,003,167 16.57 157,575 335.08 .. 1,276 2,166,925 54,645
28/12/2020–03/01/2021 774,335 12.84 97,183 206.66 .. 1,062 2,009,350 53,369
21/12/2020–27/12/2020 834,276 9.00 65,156 138.55 .. 1,014 1,912,167 52,307
14/12/2020–20/12/2020 962,584 8.37 67,610 143.77 .. 1,015 1,847,011 51,293
07/12/2020–13/12/2020 767,926 7.95 50,167 106.68 .. 1,170 1,779,401 50,278
30/11/2020–06/12/2020 861,393 7.62 50,252 106.86 .. 1,345 1,729,234 49,108
23/11/2020–29/11/2020 904,249 8.67 58,315 124.01 .. 1,652 1,678,982 47,763
16/11/2020–22/11/2020 988,429 10.76 80,779 171.77 .. 2,065 1,620,667 46,111
09/11/2020–15/11/2020 1,122,905 12.19 111,538 237.18 .. 2,288 1,539,888 44,046
02/11/2020–08/11/2020 1,125,002 13.47 132,855 282.51 .. 2,251 1,428,350 41,758
26/10/2020–01/11/2020 1,205,303 13.32 145,229 308.83 .. 1,705 1,295,495 39,507
19/10/2020–25/10/2020 1,063,770 13.70 135,527 288.19 .. 1,313 1,150,266 37,802
12/10/2020–18/10/2020 786,744 12.20 91,143 193.81 .. 965 1,014,739 36,489
05/10/2020–11/10/2020 760,488 11.10 77,718 165.27 .. 926 923,596 35,524
28/09/2020–04/10/2020 750,084 9.79 65,056 138.34 .. 906 845,878 34,598
21/09/2020–27/09/2020 780,061 9.80 72,607 154.40 .. 860 780,822 33,692
14/09/2020–20/09/2020 737,636 9.99 80,841 171.91 .. 790 708,215 32,832
07/09/2020–13/09/2020 650,348 10.35 73,844 157.03 .. 645 627,374 32,042
31/08/2020–06/09/2020 665,977 8.96 65,300 138.86 .. 488 553,530 31,397
24/08/2020–30/08/2020 623,526 8.54 60,920 129.54 .. 359 488,230 30,909
17/08/2020–23/08/2020 542,363 7.97 51,941 110.45 .. 291 427,310 30,550
10/08/2020–16/08/2020 463,367 6.14 39,744 84.51 .. 190 375,369 30,259
03/08/2020–09/08/2020 391,215 6.61 28,009 59.56 .. 132 335,625 30,069
27/07/2020–02/08/2020 339,375 4.74 20,279 43.12 .. 77 307,616 29,937
20/07/2020–26/07/2020 305,377 3.98 14,650 31.15 .. 44 287,337 29,860
13/07/2020–19/07/2020 262,094 2.42 10,055 21.38 .. 20 272,687 29,816
06/07/2020–12/07/2020 227,629 1.48 4,749 10.10 .. 27 262,632 29,796
29/06/2020–05/07/2020 220,340 0.81 2,735 5.82 .. 42 257,883 29,769
22/06/2020–28/06/2020 217,317 1.15 2,256 4.80 .. 63 255,148 29,727
15/06/2020–21/06/2020 218,355 1.07 2,084 4.43 .. 113 252,892 29,664
08/06/2020–14/06/2020 228,185 1.04 2,295 4.88 .. 155 250,808 29,551
01/06/2020–07/06/2020 238,135 0.89 2,923 6.22 .. 237 248,513 29,396
25/05/2020–31/05/2020 246,515 1.63 3,734 7.94 .. 332 245,590 29,159
18/05/2020–24/05/2020 253,253 1.75 4,284 9.11 .. 451 241,856 28,827
11/05/2020–17/05/2020 253,951 1.56 4,181 8.89 .. 610 237,572 28,376
04/05/2020–10/05/2020 248,225 3.48 5,671 12.06 .. 1,069 233,391 27,766
27/04/2020–03/05/2020 235,347 3.75 8,130 17.29 .. 1,551 227,720 26,697
20/04/2020–26/04/2020 252,298 6.60 14,647 31.15 .. 2,386 219,590 25,146
13/04/2020–19/04/2020 195,189 11.29 21,329 45.36 .. 3,576 204,943 22,760
06/04/2020–12/04/2020 160,378 20.69 30,704 65.29 .. 4,766 183,614 19,184
30/03/2020–05/04/2020 162,421 29.81 44,535 94.70 .. 5,841 152,910 14,418
23/03/2020–29/03/2020 150,474 35.68 59,466 126.45 .. 5,664 108,375 8,577
16/03/2020–22/03/2020 90,061 29.79 36,051 76.66 .. 2,432 48,909 2,913
09/03/2020–15/03/2020 35,906 24.20 11,364 24.17 .. 457 12,858 481
02/03/2020–08/03/2020 8,876 11.40 1,380 2.93 .. 24 1,494 24
24/02/2020–01/03/2020 1,318 6.07 114 0.24 .. 0 114 0
Source: Idescat, based on data from the Spanish Ministry of Health and the European Centre Disease Prevention and Control.
Note: On 24 May 2020 the total number of confirmed cases fell because the Spanish Ministry of Health switched to disseminating the data in accordance with the new diagnosis, surveillance and control strategy in the transition phase of the Covid-19 pandemic.
(..) Confidential data, low reliability or not available.

Methodological note

Information on the incidence of Covid-19 in Catalonia comes from the Ministry of Health (dadescovid.cat). Data are shown for Catalonia by full weeks (from Monday to Sunday) and include exclusively the cases confirmed by positive active infection diagnosis test (PCR and antigen test). Neither IgM antibody serological tests nor ELISA tests are included, because they provide information on the immunological state of the person, but not on the date when the virus was active. In contrast, the accumulated figure of confirmed cases in Catalonia includes those confirmed by PCR, antigen tests (ATs) serological tests, ELISA tests and the epidemiological and probable cases.

The imputed date is the start of the case, which is the earliest date between the date on which a health issue is diagnosed with Covid-19 symptoms in Primary Healthcare (provided the diagnosis is 14 days before the PCR/AT) and the date on which the positive PCR/AT result arrives. If a person has more than one Covid-19 diagnosis, the first one in the last 14 days is the one taken. If a person has undergone more than one PCR/AT, the first one is taken, which is the test that confirms the case.

The reproduction number (Rt) of an epidemic measures the average number of people infected by a person who has the virus. It is calculated as Rt= ( N(t) + N(t-1) + N(t-2) ) / ( N(t-5)+ N(t-6) + N(t-7) ), where N is the number of cases confirmed by PCR/AT.

Data on deaths in Catalonia include all those that specify in the death certificate that the person died due to Covid-19, whether or not they have a positive PCR.

Information on the incidence of Covid-19 in Spain comes from two sources:

  • The data of PCRs/ATs performed and the percentage of positive PCRs/ATs come from the European Centre for Disease Prevention and Control (ECDC) until 4 October 2020 and come from the Spanish Ministry of Health’s daily communication as of 5 October 2020.
  • The confirmed case data, the confirmed case rate and death figures come from the daily statements of the Spanish Ministry of Health. Idescat makes an estimate of the weekly confirmed cases in Catalonia and the rate of weekly confirmed cases in Spain to correct any delay in the reporting of the information. The estimate is carried out on the basis of the data communicated by the Ministry of Health of cases diagnosed in the last 7 days, cases diagnosed in the last 14 days and total cases.

Data from Spain for PCRs/ATs performed and positive PCRs/ATs do not include serological tests for IgM antibodies. In contrast, confirmed cases and the confirmed case rate include cases confirmed by a positive active infection diagnosis PCR, antigen test (AT) and by serological tests with compatible symptomatology.

Data from Catalonia and Spain may vary as a result of retrospective revisions, and may show oscillations or inconsistencies arising from the editing and validation processes. The total of confirmed cases and the total deaths may include some old cases in addition to new ones.