COVID-19 short-term forecasts Confirmed 2020-09-12


General information

  • Forecasts produced by Jennie Castle, Jurgen Doornik, and David Hendry, researchers at the University of Oxford. These are our forecasts, and should not be considered official forecasts from, or endorsed by, any of: University of Oxford, Oxford Martin School, Nuffield College, or Magdalen College.
  • These forecasts are short term time-series extrapolations of the data. They are not based on epidemiological modelling or simulations. All forecasts are uncertain: their success can only be determined afterwards. Many mitigation strategies are in place, which, if successful, invalidate our forecasts. An explanation of our methods is provided below.
  • A list of notes is below. The most recent note:
    [2020-07-01] Modified the short-term model to allow for (slowly changing) seasonality. Many countries show clear seasonality after the initial period, likely caused by institutional factors regarding data collection. This seasonality was also getting in the way of peak detection. As a consequence estimates of the peak date may have changed for countries with strong seasonality.
    Added forecasts of cumulative confirmed cases for lower tier local authorities of England. The data is available from 2020-07-02 including all tests (pillar one and two). Only authorities with more than 5 cases in the previous week are included.

Peak increase in estimated trend of Confirmed in Europe 2020-09-12

UKEUATBEBGBSCZDEDKESFIFRGRHRHUIEITNLPLPTROSESISKNOCH
Peak date04-0704-0203-2604-1507-2403-28 --03-27 -- --04-0404-12 -- -- --04-1003-24 --08-1504-10 --06-19 -- --03-2603-27
Peak daily increment 4728 29683 808 1470 238 283 5662 146 19306 1117 5643 727 830 1075 240 1137
Days from 100 to peak 36 71 18 38 126 15 25 22 44 27 30 153 28 105 19 22
Days from peak/2 to peak 24 24 13 32 125 13 14 22 24 21 20 148 23 99 18 17
Last total 365174 2205176 32696 92478 17891 13110 35401 260817 19557 566326 8557 381907 13036 13368 11825 30730 286297 81012 73650 63310 102386 86505 3603 5453 12079 46704
Last daily increment 3497 12181 869 941 92 147 1541 1082 341 0 45 0 302 261 916 159 1501 1231 603 497 1311 0 106 201 76 465
Last week 18022 185803 3425 4111 802 561 7245 9089 1674 67337 266 52661 1512 1404 3438 1058 8663 6225 2826 3052 7372 1520 438 839 691 2303
Days since peak 158 163 170 150 50 168 169 161 153 155 172 28 155 85 170 169

Peak increase in estimated trend of Confirmed 2020-09-12

AustraliaBrazilCanadaChileColombiaIndiaIndonesiaIranMexicoPeruPhilippinesRussiaSouth AfricaTurkeyUSUS-AKUS-ALUS-ARUS-AZUS-CAUS-COUS-CTUS-DCUS-DEUS-FLUS-GAUS-HIUS-IAUS-IDUS-ILUS-INUS-KSUS-KYUS-LAUS-MAUS-MDUS-MEUS-MIUS-MNUS-MOUS-MSUS-MTUS-NCUS-NDUS-NEUS-NHUS-NJUS-NMUS-NVUS-NYUS-OHUS-OKUS-ORUS-PAUS-SCUS-SDUS-TNUS-TXUS-UTUS-VAUS-WAUS-WIUS-WVUS-WY
Peak date08-0208-0405-0306-0609-09 -- --04-0107-3108-1308-1205-0907-1604-1407-1907-2607-16 --07-0407-2004-2404-2005-0104-2607-1707-3008-2608-27 --09-04 --09-02 --07-1904-2405-0605-2204-06 -- --07-2409-0407-18 --05-0105-0104-0807-2307-1904-0107-0307-2807-2404-0907-1608-2707-2707-1607-1008-0708-01 -- --04-21
Peak daily increment 483 45354 1991 7363 12131 2860 6738 8581 4357 10917 12483 4816 67032 101 1805 3552 9259 729 1012 190 197 11222 3329 238 1672 3873 595 2160 3312 1017 48 1627 1273 127 1972 441 89 4272 286 1108 9495 1810 963 334 1624 1837 460 2139 9846 495 1435 1071 86
Days from 100 to peak 145 140 51 83 172 36 135 147 148 52 120 27 133 118 117 104 131 40 30 39 32 123 136 152 157 173 162 125 40 48 59 21 125 161 121 34 38 24 120 120 22 106 126 126 23 117 149 130 121 111 141 146 22
Days from peak/2 to peak 140 113 43 64 133 29 113 126 132 34 75 19 118 122 107 92 114 35 27 40 32 108 125 151 144 162 157 118 30 41 65 15 117 163 112 29 41 16 118 113 12 98 120 124 16 108 144 122 105 108 132 140 27
Last total 26651 4315687 138164 432666 708964 4754356 214746 399940 663973 716670 257863 1053663 648214 289635 6485214 6206 124823 68166 208128 758933 60876 54219 14493 18262 660538 273852 10562 74171 35166 259856 104561 48658 56415 155984 122180 115533 4829 117115 83429 92202 89620 8925 183738 15151 37963 7651 196031 25336 73220 443640 136568 68614 29156 148635 129978 16437 165690 677716 45960 132868 79187 87603 12528 4297
Last daily increment 44 33523 488 2131 6876 94372 3806 2139 5674 6603 4899 5406 1816 1509 41471 103 726 1542 605 4028 414 0 0 164 3184 2036 129 792 217 2118 1056 288 711 0 439 809 38 793 909 1960 445 140 1452 467 269 32 456 98 414 849 1242 989 291 932 932 320 1053 2682 458 1297 463 1353 351 33
Last week 330 178166 4274 10156 42443 549743 20637 13282 29950 32968 20498 31435 9697 9829 208849 447 4008 4016 2362 20077 1625 954 214 553 15210 9683 733 3964 2242 10312 4757 2828 3641 3308 1814 3414 147 5687 3022 7430 2732 661 6837 1520 2222 208 2281 550 1610 4139 6010 5048 1112 4811 5026 1328 7896 19514 2169 5991 2265 6410 1110 265
Days since peak 41 39 132 98 3 164 43 30 31 126 58 151 55 48 58 70 54 141 145 134 139 57 44 17 16 8 10 55 141 129 113 159 50 8 56 134 134 157 51 55 164 71 46 50 156 58 16 47 58 64 36 42 144

Confirmed count forecast Europe (bold red line in graphs) 2020-09-13 to 2020-09-19

DateUKEUATBEBGBSCZDEDKESFIFRGRHRHUIEITNLPLPTROSESISKNOCH
2020-09-12 365174 2205176 32696 92478 17891 13110 35401 260817 19557 566326 8557 381907 13036 13368 11825 30730 286297 81012 73650 63310 102386 86505 3603 5453 12079 46704
2020-09-13 368300 2205000 33320 92480 17960 13200 36300 261100 20130 582300 8588 387800 13410 13710 12480 30870 287300 81930 74200 63830 103400 86510 3657 5618 12210 47060
2020-09-14 371200 2247000 33910 92800 18020 13290 37530 262900 20690 595300 8617 393400 13650 13830 13090 31000 288400 82890 74740 64330 104200 86820 3723 5782 12320 47390
2020-09-15 373900 2270000 34490 93190 18200 13370 39320 264200 21260 608300 8647 399000 13920 14020 13730 31130 289600 83910 75280 64820 105300 86980 3801 5950 12440 47730
2020-09-16 376600 2294000 35040 93700 18330 13450 40790 265500 21850 621900 8676 404300 14200 14340 14350 31250 290900 84880 75820 65290 106500 87120 3906 6119 12550 48050
2020-09-17 379600 2320000 35600 94430 18480 13540 42640 267000 22450 635900 8705 409700 14590 14640 14990 31380 292500 85710 76350 65770 107900 87360 3996 6294 12660 48370
2020-09-18 382900 2353000 36170 95280 18660 13620 44680 268500 23060 650100 8734 415100 14900 14890 15640 31500 294100 86880 76890 66240 109200 87610 4120 6474 12770 48690
2020-09-19 386100 2362000 36730 96050 18740 13700 46210 269400 23700 664700 8762 420600 15180 15180 16320 31630 295500 87930 77430 66710 110500 87620 4224 6659 12880 49010

Confirmed count forecast (bold red line in graphs) 2020-09-13 to 2020-09-19

DateAustraliaBrazilCanadaChileColombiaIndiaIndonesiaIranMexicoPeruPhilippinesRussiaSouth AfricaTurkeyUSUS-AKUS-ALUS-ARUS-AZUS-CAUS-COUS-CTUS-DCUS-DEUS-FLUS-GAUS-HIUS-IAUS-IDUS-ILUS-INUS-KSUS-KYUS-LAUS-MAUS-MDUS-MIUS-MNUS-MOUS-MSUS-MTUS-NCUS-NDUS-NEUS-NHUS-NJUS-NMUS-NVUS-NYUS-OHUS-OKUS-ORUS-PAUS-SCUS-SDUS-TNUS-TXUS-UTUS-VAUS-WAUS-WIUS-WVUS-WY
2020-09-12 26651 4315687 138164 432666 708964 4754356 214746 399940 663973 716670 257863 1053663 648214 289635 6485214 6206 124823 68166 208128 758933 60876 54219 14493 18262 660538 273852 10562 74171 35166 259856 104561 48658 56415 155984 122180 115533 117115 83429 92202 89620 8925 183738 15151 37963 7651 196031 25336 73220 443640 136568 68614 29156 148635 129978 16437 165690 677716 45960 132868 79187 87603 12528 4297
2020-09-13 26720 4363000 138700 434600 716200 4817000 219700 401900 669400 723000 261000 1059000 651300 291200 6535000 6264 125500 69280 208800 762900 61190 54370 14540 18350 663400 276600 10740 75630 35360 261800 106400 49320 56980 157400 122500 116100 117100 84770 94300 90160 9069 186000 15360 38000 7656 196400 25450 73550 444300 137600 69100 29440 149100 130800 16690 167400 683900 46160 133900 79590 89400 12720 4334
2020-09-14 26790 4378000 139200 436300 723000 4894000 224800 403800 672600 729200 264000 1064000 652300 292700 6559000 6300 126200 69960 208900 766700 61380 54490 14590 18430 666200 277300 10920 76010 35550 263200 108400 49900 57380 157700 122800 116700 118100 85350 96400 90680 9129 187000 15520 38150 7662 196700 25550 73880 445000 138700 69690 29570 149800 131400 16870 168400 684700 46460 134800 79980 90900 12910 4369
2020-09-15 26860 4399000 139700 437500 729800 4981000 230000 405700 677800 735200 267200 1069000 653400 294200 6586000 6333 126800 70620 209100 770500 61620 54620 14630 18510 669000 278800 11100 76580 35740 264600 110300 50380 57810 158000 122900 117200 118700 85680 98500 91220 9204 187900 15640 38580 7669 197000 25660 74200 445700 139700 70460 29730 150400 131900 17000 169200 688000 46740 135800 80370 92600 13130 4404
2020-09-16 26930 4437000 140200 438900 736300 5070000 235400 407600 682200 741200 270200 1073000 655600 295700 6620000 6394 127500 71430 209500 774300 61840 54740 14670 18580 671700 280600 11280 77290 35930 266200 112300 50940 58470 159200 123200 117700 119500 86070 100700 91740 9319 188800 15880 38980 7675 197300 25760 74510 446300 140700 71220 29840 151200 132300 17190 170200 692400 47020 136700 80750 94500 13350 4439
2020-09-17 27010 4475000 140700 440400 742900 5158000 240900 409500 687300 747100 273300 1078000 657500 297200 6655000 6501 128200 72310 210100 778100 62100 54860 14710 18660 674500 282700 11460 78350 36120 267800 114400 51330 59250 159700 123500 118300 120400 86670 103000 92270 9491 190200 16220 39390 7681 197700 25860 74830 447000 141800 72010 30040 151900 132900 17460 172500 694600 47310 137700 81130 96600 13600 4474
2020-09-18 27080 4514000 141200 442200 749600 5251000 246600 411400 692900 753000 276400 1083000 659200 298700 6697000 6601 128800 73530 210600 781900 62320 54980 14750 18730 677200 284200 11650 79270 36310 269700 116500 51960 60100 160400 123900 118800 121500 87170 105300 92790 9621 191700 16520 39790 7687 198000 25970 75140 447600 142800 72940 30240 152800 135000 17700 174000 699300 47780 138600 81510 98900 13820 4509
2020-09-19 27150 4545000 141700 444200 756200 5341000 252400 413300 698400 759000 279500 1088000 661100 300100 6735000 6696 129500 74510 211200 785700 62770 55100 14790 18810 679900 286200 11830 79970 36500 271700 118700 52250 60800 160400 124300 119400 122100 87980 107700 93320 9763 193200 16950 39980 7694 198300 26070 75460 448200 143800 73890 30500 153600 136000 18010 175100 702500 48200 139500 81890 101000 14220 4544

Confirmed count average forecast Europe (bold black line in graphs) 2020-09-13 to 2020-09-19

DateUKEUATBEBGBSCZDEDKESFIFRGRHRHUIEITNLPLPTROSESISKNOCH
2020-09-12 365174 2205176 32696 92478 17891 13110 35401 260817 19557 566326 8557 381907 13036 13368 11825 30730 286297 81012 73650 63310 102386 86505 3603 5453 12079 46704
2020-09-13 366300 2207000 32810 92570 17940 13180 35610 261000 19840 576100 8577 386500 13240 13590 12150 30800 286800 81410 73890 63630 103200 86510 3630 5536 12160 46850
2020-09-14 368400 2228000 33050 92790 18010 13270 36180 261800 20190 592100 8596 394600 13490 13800 12690 30900 287300 82170 74260 64010 104200 86630 3674 5668 12260 47080
2020-09-15 370500 2242000 33390 93090 18160 13330 37210 262500 20540 605200 8613 400600 13750 14020 13170 31030 287800 83010 74720 64400 105300 86720 3741 5812 12350 47330
2020-09-16 372700 2257000 33760 93510 18290 13430 38350 263200 20900 618700 8630 407000 14060 14320 13660 31160 288500 83900 75140 64790 106500 86800 3820 5968 12450 47580
2020-09-17 374900 2270000 34210 94060 18420 13490 39740 263900 21270 632300 8647 413600 14460 14600 14140 31290 289200 84640 75710 65170 107700 86920 3895 6131 12540 47830
2020-09-18 377200 2286000 34600 94610 18580 13570 40920 264600 21640 647500 8664 421000 14820 14890 14820 31420 289800 85470 76350 65550 109000 87030 3978 6292 12630 48070
2020-09-19 379500 2291000 35010 95130 18660 13680 41720 265000 22030 660300 8681 425800 15130 15190 15530 31550 290500 86330 76960 65960 110200 87050 4051 6474 12720 48310

Confirmed count average forecast (bold black line in graphs) 2020-09-13 to 2020-09-19

DateAustraliaBrazilCanadaChileColombiaIndiaIndonesiaIranMexicoPeruPhilippinesRussiaSouth AfricaTurkeyUSUS-AKUS-ALUS-ARUS-AZUS-CAUS-COUS-CTUS-DCUS-DEUS-FLUS-GAUS-HIUS-IAUS-IDUS-ILUS-INUS-KSUS-KYUS-LAUS-MAUS-MDUS-MIUS-MNUS-MOUS-MSUS-MTUS-NCUS-NDUS-NEUS-NHUS-NJUS-NMUS-NVUS-NYUS-OHUS-OKUS-ORUS-PAUS-SCUS-SDUS-TNUS-TXUS-UTUS-VAUS-WAUS-WIUS-WVUS-WY
2020-09-12 26651 4315687 138164 432666 708964 4754356 214746 399940 663973 716670 257863 1053663 648214 289635 6485214 6206 124823 68166 208128 758933 60876 54219 14493 18262 660538 273852 10562 74171 35166 259856 104561 48658 56415 155984 122180 115533 117115 83429 92202 89620 8925 183738 15151 37963 7651 196031 25336 73220 443640 136568 68614 29156 148635 129978 16437 165690 677716 45960 132868 79187 87603 12528 4297
2020-09-13 26680 4330000 138500 434400 715300 4821000 219200 401100 668100 720000 258700 1056000 649100 291200 6504000 6243 125300 68400 208300 759900 61120 54300 14520 18290 662400 274700 10650 74790 35360 261100 106000 48900 56710 157200 122300 115900 117200 84030 93900 89860 9007 184600 15300 38050 7662 196200 25410 73490 444000 137300 69090 29290 149000 130500 16620 166900 679800 46080 133400 79360 89010 12720 4314
2020-09-14 26720 4347000 138900 436100 722700 4901000 224200 402400 671900 724000 260600 1059000 650100 292700 6517000 6293 125900 68590 208600 761300 61310 54420 14550 18340 664800 275600 10770 75350 35670 262600 107800 49430 57210 157500 122400 116400 117800 84650 95800 90190 9071 185400 15510 38230 7680 196500 25450 73780 444700 138000 69830 29440 149700 131000 16790 168000 681000 46380 134300 79580 90300 12940 4344
2020-09-15 26750 4369000 139300 437300 730600 4988000 229400 403600 676900 729000 263000 1061000 651300 294300 6531000 6349 126500 68970 208900 763000 61550 54530 14590 18410 667400 277100 10890 75960 35990 264100 109500 49910 57730 157900 122600 116800 118500 85160 97700 90600 9155 186300 15720 38550 7701 196800 25500 74050 445300 138700 70590 29600 150400 131500 16960 169000 684300 46690 135200 79740 91860 13160 4381
2020-09-16 26790 4404000 139700 438700 739100 5081000 234600 404900 681500 733900 265700 1064000 653000 295900 6549000 6417 127100 69520 209300 764700 61750 54650 14610 18470 669900 278800 11040 76670 36300 265800 111300 50420 58360 159000 122700 117200 119200 85700 99800 91040 9272 187200 15980 38900 7723 197100 25600 74300 446000 139500 71360 29740 151100 132000 17140 170200 688400 46990 136100 79970 93420 13410 4418
2020-09-17 26830 4446000 140100 440300 748100 5171000 240400 406100 686600 738800 268300 1066000 654500 297400 6569000 6499 127700 70140 209800 767300 62010 54770 14640 18550 672800 280800 11240 77560 36620 267500 113200 50890 59090 159500 123000 117700 120000 86390 101900 91590 9447 188800 16300 39250 7746 197400 25770 74590 446600 140700 72140 29940 151800 132800 17430 172100 691000 47300 137000 80270 95130 13690 4452
2020-09-18 26860 4489000 140500 442200 756400 5261000 246400 407300 692100 743900 271000 1069000 655900 299000 6596000 6584 128300 70970 210300 769600 62160 54880 14690 18620 675500 282700 11470 78500 36920 269600 115200 51540 59840 160200 123100 118200 120800 87130 104200 92200 9594 190600 16590 39550 7773 197700 25870 74920 447300 141800 72950 30150 152700 134300 17710 173400 695900 47680 137800 80530 96970 13940 4491
2020-09-19 26900 4525000 140900 444000 765000 5353000 252300 408500 697800 748800 273700 1071000 657300 300600 6620000 6662 129100 71600 210800 772100 62630 55000 14720 18700 678100 284700 11690 79340 37240 271600 117200 52020 60560 160300 123300 118800 121400 87980 106600 92730 9767 192400 16920 39780 7799 198100 25960 75240 447900 142900 73760 30380 153400 135300 18020 174800 699400 48020 138700 80830 98700 14300 4523

Confirmed count scenario forecast (bold purple line in graphs) 2020-09-13 to 2020-09-21

DateUKEUATBEBGBSCZDEDKESFIFRGRHRHUIEITNLPLPTROSESISKNOCHAustraliaBrazilCanadaChileColombiaIndiaIndonesiaIranMexicoPeruPhilippinesRussiaSouth AfricaTurkeyUSUS-AKUS-ALUS-ARUS-AZUS-CAUS-COUS-CTUS-DCUS-DEUS-FLUS-GAUS-HIUS-IAUS-IDUS-ILUS-INUS-KSUS-KYUS-LAUS-MAUS-MDUS-MIUS-MNUS-MOUS-MSUS-MTUS-NCUS-NDUS-NEUS-NHUS-NJUS-NMUS-NVUS-NYUS-OHUS-OKUS-ORUS-PAUS-SCUS-SDUS-TNUS-TXUS-UTUS-VAUS-WAUS-WIUS-WVUS-WY
2020-09-12 365174 2205176 32696 92478 17891 13110 35401 260817 19557 566326 8557 381907 13036 13368 11825 30730 286297 81012 73650 63310 102386 86505 3603 5453 12079 46704 26651 4315687 138164 432666 708964 4754356 214746 399940 663973 716670 257863 1053663 648214 289635 6485214 6206 124823 68166 208128 758933 60876 54219 14493 18262 660538 273852 10562 74171 35166 259856 104561 48658 56415 155984 122180 115533 117115 83429 92202 89620 8925 183738 15151 37963 7651 196031 25336 73220 443640 136568 68614 29156 148635 129978 16437 165690 677716 45960 132868 79187 87603 12528 4297
2020-09-13 368100 2225000 33300 92750 17990 13180 35990 262000 19840 582800 8561 390800 13230 13660 12300 30880 287400 82260 74120 63780 104100 86690 3651 5543 12170 47060 26710 4336000 138300 434300 723900 4851000 218500 401500 666700 730500 257900 1058000 649200 292100 6504000 6223 125400 69030 208400 762400 61170 54430 14560 18290 662700 275100 10700 74780 35980 263700 106800 49280 57470 156800 122200 116100 118200 85220 93900 90070 9110 185000 15400 38230 7680 196500 25420 73460 444300 137300 68790 29290 149600 130400 16590 166600 680800 46070 133400 79420 89160 12700 4332
2020-09-14 371600 2246000 34300 93600 18080 13300 36930 263100 20100 593900 8577 399900 13390 13880 13050 31070 288500 83120 74560 64090 105300 86900 3730 5696 12240 47520 26780 4361000 138900 435900 732100 4939000 222300 403500 669600 739500 260200 1062000 650300 293800 6532000 6290 125900 69800 208700 765200 61490 54570 14600 18420 664800 276200 10800 75410 36330 265500 107600 49800 58190 157200 122600 116600 119600 86190 95500 90470 9260 186000 15650 38530 7714 196900 25490 73710 445100 137900 69430 29430 150500 131100 16730 167700 683900 46370 134200 79700 90260 12940 4372
2020-09-15 375700 2266000 35250 94130 18170 13390 37690 264200 20350 604700 8592 409100 13630 14110 13600 31190 289600 84010 74990 64270 106800 87050 3780 5816 12320 47930 26820 4382000 139600 437300 742400 5029000 225700 405200 672100 748600 262100 1067000 651300 295300 6555000 6339 126300 70790 209000 768100 61820 54690 14640 18500 667000 277200 10910 75980 36750 266500 109000 50290 58910 157700 122900 117200 120100 87510 97100 90730 9410 186900 15960 38880 7746 197400 25570 73900 445700 138400 69770 29540 151400 131800 16870 168500 686600 46600 134800 79950 91750 13170 4408
2020-09-16 379300 2284000 36230 94720 18230 13500 38760 265300 20610 614600 8612 419000 13840 14330 13960 31310 290600 84720 75430 64430 108300 87270 3840 5950 12380 48380 26870 4400000 140200 438800 753900 5120000 229100 406700 674800 759000 264200 1072000 652300 297100 6577000 6386 126600 71570 209200 770400 62220 54830 14670 18580 668600 278200 11010 76530 37090 268900 111100 50650 59940 158100 123200 117600 120500 88670 98600 91050 9550 187700 16260 39170 7779 197700 25610 74120 446300 138800 70190 29650 152300 132300 17010 169400 688900 46790 135500 80160 93180 13390 4442
2020-09-17 382600 2314000 37260 95140 18310 13580 40060 266200 20870 626000 8627 428700 14080 14430 14840 31510 291500 84950 75790 64650 110000 87460 3912 6080 12440 48740 26910 4420000 140600 440200 755100 5227000 233600 407700 677400 768800 266000 1074000 653100 299000 6594000 6428 127000 71760 209500 772700 62480 54970 14720 18680 670100 279200 11090 76990 37090 269900 111400 51150 60880 158500 123700 118000 121000 89460 100400 91310 9730 188500 16570 39540 7814 198000 25660 74300 447000 138800 70580 29750 153200 132700 17140 170200 691300 46970 136100 80390 94250 13640 4475
2020-09-18 386200 2336000 38250 95700 18360 13670 40770 267100 20920 638100 8641 437000 14110 14570 15340 31670 292400 85860 76120 64750 111300 87640 3969 6171 12490 49080 26950 4437000 141200 441300 761200 5298000 236100 408900 679100 780700 267400 1078000 653900 299800 6607000 6460 127300 71880 209600 774300 62750 55100 14750 18770 671300 280000 11190 77300 37090 272100 111700 51550 61680 158800 124000 118400 121400 89540 102000 91570 9850 189200 16870 39970 7851 198300 25710 74480 447600 139000 70820 29840 153600 133000 17260 170700 693200 47040 136700 80600 95960 13860 4520
2020-09-19 390500 2352000 39280 95950 18420 13710 41670 267900 21170 650200 8659 445000 14270 14730 16040 31720 293200 85860 76450 64900 112900 87790 4028 6328 12530 49390 27000 4453000 141700 442600 768800 5373000 239400 410000 680900 788000 268700 1080000 654600 300700 6622000 6492 127500 72320 209800 775800 63030 55240 14790 18830 672100 281000 11250 77630 37090 272600 111800 51890 62310 159100 124600 118700 121700 89540 103300 91870 9980 189900 17160 40420 7887 198600 25760 74660 448000 139300 70890 29930 154000 133400 17360 171400 695500 47160 137200 80770 97220 14070 4560
2020-09-20 393900 2368000 40080 96330 18480 13770 42450 268500 21490 661500 8671 455100 14540 14920 16560 31790 293900 86750 76710 65090 114200 87930 4088 6395 12580 49710 27040 4466000 142000 443700 777200 5459000 242600 411000 682300 799900 270000 1083000 655100 302100 6635000 6518 127700 73370 209900 777300 63310 55340 14850 18900 673000 281800 11330 78020 37090 272600 112400 52270 62990 159300 124600 119000 122000 89850 104800 92100 10120 190500 17400 40880 7919 198900 25810 74810 448600 139300 71020 30010 154200 133700 17510 172300 697300 47300 137800 80950 98360 14270 4600
2020-09-21 397600 2382000 40930 96430 18520 13830 43090 269200 21630 672100 8676 460800 14690 15030 17070 31880 294800 87400 76980 65210 115100 88020 4122 6489 12630 50020 27080 4476000 142500 444800 784700 5526000 245400 412100 683700 806700 271000 1086000 655600 303500 6648000 6553 127800 73870 210000 777800 63550 55410 14890 18940 673800 282300 11400 78480 37090 272600 112900 52510 63360 159500 125100 119300 122500 89850 106300 92400 10230 191100 17650 41180 7951 199300 25850 74950 449200 139300 71110 30090 154400 134100 17560 172900 698900 47410 138200 81100 99960 14430 4638

Further information

  • We believe these forecasts fill a useful gap in the short run. They give an indication of what is likely to happen in the next few days, removing some aspect of surprise. Moreover, a noticeable drop in comparison to the extrapolations could be an indication that the implemented policies are having some impact. It is difficult to understand exponential growth. We hope that these forecasts may help to convince viewers to adhere to the policies implemented by their respective governments, and keep all arguments factual and measured.
  • We use the data repository for the 2019 Novel Coronavirus Visual Dashboard operated by the Johns Hopkins University Center for Systems Science and Engineering. This is updated daily, but we tend to update our forecasts only every other day.
    US state data as of 2020-03-28 is courtesy of the New York Times.
  • We can only provide forecasts of what is measured. If confirmed cases are an underestimate of actual cases, then our forecasts will also be underestimates. No other epidemiological data is used. Data definition and collection differs between countries and may change over time.
  • We will update the methodology as we learn what is happening in the next few days or weeks. Once the number of cases levels off, there is no need to provide these forecasts anymore.
  • Countries where the counts are very low or stable have been omitted.
  • The graphs have dates on the horizontal axis (yyyy-mm-dd) and cumulative counts on the vertical axis. They show
    1. bold dark grey line (with circles): observed counts (Johns Hopkins CSSE);
    2. many light grey lines (with open circles): forecasts using different model settings and starting up to four periods back;
    3. red line (with open circles): single forecasts path using default model settings;
    4. black line (with crosses): average of all forecasts, recentered on the last observation;
    5. thin green lines: some indication of uncertainty around the red forecasts, but we do not know how reliable that is.
    Both the red line forecasts and the black lines are also given in the tables above. These forecasts differ, we are currently inclined to use the average forecasts.
  • The forecasts are constructed as follows:
    1. An overall `trend' is extracted by taking a window of the data at a time. In each window we draw `straight lines' which are selected using an automatic econometric procedure (`machine learning'). All straight lines are collected and averaged, giving the trend.
    2. Forecasts are made using the estimated trend, but we note that this must be done carefully, because simply extrapolating the flexible insample trend would lead to wildly fluctuating forecast. We use the `Cardt' method, which has been found to work well in other settings.
    3. Residuals from the trend are also forecast, and combined with trend forecasts into an overall forecast.
  • Scenario forecasts are constructed very differently: smooth versions of the Chinese experience are matched at different lag lengths with the path of each country. This probably works best from the peak, or the slowdown just before (but we include it for the UK nonetheless).
  • The forecast evaluation shows past forecasts, together with the outcomes (in the grey line with circles).
  • EU-BS is Estonia, Latvia, and Lithuania together.
  • This paper describes the methodology and gives further references. Also available as Nuffield Economics Discussion Paper 2020-W06. Still preliminary is the documentation of the medium term forecasts.

Recent changes and notes

[2020-07-01] Modified the short-term model to allow for (slowly changing) seasonality. Many countries show clear seasonality after the initial period, likely caused by institutional factors regarding data collection. This seasonality was also getting in the way of peak detection. As a consequence estimates of the peak date may have changed for countries with strong seasonality.
Added forecasts of cumulative confirmed cases for lower tier local authorities of England. The data is available from 2020-07-02 including all tests (pillar one and two). Only authorities with more than 5 cases in the previous week are included.
[2020-06-29] Tables in April included the world, but not the world as we know it (double counting China and the US). So removed the world from those old tables.
Why short-term forecasts can be better than models for predicting how pandemics evolve just appeared at The Conversation.
Thursday 2 July webinar at the FGV EESP - São Paolo School of Economics. This starts at 16:00 UK time (UTC+01:00) and streamed here.
[2020-06-24] Research presentation on short-term COVID-19 forecasting on 26 June (14:00 UK time) at the Quarterly Forecasting Forum of the IIF UK Chapter.
[2020-06-06] Removed Brazil from yesterday's forecasts (only; last observation 2020-06-05).
[2020-06-04] Data issues with confirmed cases for France.
Added an appendix to the short term paper with further forecast comparisons for European and Latin American countries.
Both Sweden and Iran have lost their peak in confirmed cases. For Sweden the previous peak was on 24 April (daily peak of 656 cases), for Iran it was on 31 March (peak of 3116). For Iran this looks like a second wave, with increasing daily counts for the last four weeks. For Sweden this is a sudden jump in confirmed cases in the last two days, compared to a fairly steady weekly pattern over the previous six weeks.
[2020-05-20] Problem with UK confirmed cases: negative daily count. This makes the forecasts temporarily unreliable.
Updated the second paper.
[2020-05-18] Minor fixes to the improved version of scenario forecasting, backported to 2020-05-13.
[2020-05-13] We now omit countries with fewer than 200 confirmed cases in the last week (25 for deaths).
The short-term paper has some small updates, including further comparisons with other models.
Data for Ecuador are not reliable enough for forecasting.
Switched to an improved version of scenario forecasting.
[2020-05-06] The New York Times is in the process of redefining its US state data. Unfortunately, at the moment only the last observation has changed (e.g New York deaths jumped from 19645 on 2020-05-05 to 25956 a day later). This means the data is currently useless; however it does bring it close to the Johns Hopkins/CSSE count (25626 on 2020-05-06). The aggregate US count is based on JH/CSSE so unaffected. We now use Johns Hopkins/CSSE US state data, including all states with sufficient counts. So the new forecasts cannot be compared to those previously.
A minor change is that we show the graph without scenario forecast if no peak has been detected yet.
[2020-04-29] See our blog entry at the International Institute of Forecasters.
US history of death counts revised in Johns Hopkins/CSSE data.
UK death counts have been revised to include the deaths in care homes. In the Johns Hopkins/CSSE data set, which we use, the entire history has been revised. So forecasts made up to 2020-04-29 cannot be compared to later outcomes. In the ECDC data set only the last observation has changed, causing a jump in the series.
[2020-04-27] Our short-term COVID-19 forecasting paper is now available as Nuffield Economics Discussion Paper 2020-W06.
A small adjustment has been made to the scenario forecast methodology, and will be documented shortly.
[2020-04-24] A summary of our work on short-term COVID-19 forecasting appeared as a voxeu.
[2020-04-17] Bird and Nielsen look into nowcasting death counts in England.
[2020-04-16] Added scenario forecasts to all graphs now. This would now be the preferred forecast for most.
This is the first time with a peak in confirmed UK cases (also for deaths, but this is uncertain because it is at the same date).
[2020-04-10] Updated documentation with better description of short-term estimates and peak determination.
[2020-04-09] Added table with estimated peak dates (if happened) and dates to and since the peak. Note that this can be a local peak, and subsequent re-acceleration (or data revisions) can result in a new peak later.
[2020-04-08] Minor correction to peak estimates. Added table with scenario forecasts.
[2020-04-06] Added a post hoc estimate of the peak number of cases. This needs at least three confirmed observations (four for deaths) after the event. It is based on the averaged smooth trend, and can change later or be a local peak. It is marked with a vertical line with the date label, or a date with left arrow in the bottom left corner of the graph. This is backported to 2020-04-04.
[2020-04-02] Now including more US States, based on New York Times data.
[2020-03-31] Scenario forecasts, based on what happened in China earlier this year, are presented for several countries (line marked with x). Created more plausible 90% confidence bands (dotted line in same colour).
[2020-03-26] Scenario forecasts that are based on what happened in China earlier this year, only for Italy.
[2020-03-24] Our forecasts are starting to overestimate in some cases. This was always expected to happen when the increase starts to slow down. Scenario forecasts that are based on what happened in China earlier this year, but only for Italy and Spain sofar.

Initial visual evaluation of forecasts of Confirmed