Surge Dallas, Denton, Collin Tarrant Counties County Assumptions: 0 Total Population: 6,487,090 Initial Positives: 135 Initial Date: 3/20/20 Model Assumptions: Average Recovery Days 14 Average Incubation Days 4 Infection rate of 25% of the total population. ER presentation rate of COVID positive cases 20% Hospitalization rate of ER patients 30% COVID positive cases needing ICU 40% COVID positive ICU cases needing Vent 62% General L08 for COVID +ve patients 6 days L08 for COVID +ve patients in ICU 14 days Number of people Surge Dallas, Denton, Collin Tarrant Counties Unmitigaled Surge Forecast CCIVID +ve ICU Patient census COVID +ve Total Patient census 1600000 COVID Vent Patient census Jr EOVID +ve Med-Sun; Patient census 40000 .I II 1400000 .I II L200000 .I 30000 I. I 1000000 I .II IE 510000 nfected_Pcp Recoveredjatlents. a 0 20000 600000 400000 IGOUD 200000 0 0 I M?y Juln Juli Dave Beta per clay COVID19 Surge Dallas, Denton, Collin Tarrant Counties Current Mitigation Efforts Updated Beta Mitigated Surge Forecast Strong Mitigation Efforts Mitigated Surge Forecast 5 Beta Trend Per Day All - - 355.3 . COPID we CJ Patient census CWID CJ 33:3 Decaf MOde' we Tar-l Fa?tlenl census COUID weTar-l Patient census I Bela Decay Observed CWID we Wi'l Patient cenSus town llv?eWI'l Patient cenSus Beta Decaf Trend COUID we we I JUI-J 10:0 - r' . a All] . '1 Hon1:01} - 5:0 3-3any v.13. )fn 'inp Apr May nan 23m 2020 Eur: Surge Dallas County County Assumptions: - Total Population: 2,622,799 Initial Positives: 74 Initial Date: 3/20/20 Model Assumptions: Average Recovery Days 14 Average Incubation Days 4 Infection rate of 25% of the total population. ER presentation rate of COVID positive cases 20% Hospitalization rate of ER patients 30% COVID positive cases needing ICU 40% COVID positive ICU cases needing Vent 62% General LOS for COVID +ve patients 6 days LOS for COVID +ve patients in ICU 14 days Surge Dallas County Unmitigated Surge Forecast CDVID +119 ICU Patient census i CDWD +ve Total Patient census 17500 - f?x +ve Vent Patient census \l CDVID +ve Med-Surg Patient census 600000 - 15000 - 500000 125cm . E- 400000 - l\ I 0 10000 - CD 3 D- Suscepuhle_Po-p lnfected_Pc-p Recoveredfatients 30000:] 3 CD 7500 1:2 3 205000 5000 - 100000 2500 2020 May Surge Dallas County Beta Trend Per Day Dallas Beta Decay Mitigated Model Beta Decay Observed 0'40 Beta Decay Trend 0.55 0.30 a; 0.25 5 IL in 3 0.20 0.15 0.10 0.May 2020 law? pe' day 40: COVIO we .Cu PatlElK (ems - COUD +w foul tarsus (0V0 m- Purl-nudism; (.0le we ?ea 5th recent (ensus Strong Mitigation Efforts Mitigated Surge Forecast AD: fur? pr? day Current Mitigation Efforts Updated Beta Mitigated Surge Forecast cowl) HIE CU census - COVD Mutual Pauau tarsus (Owl) we Vent Pot-em census (DVD CV9 Ned SUN Fit-2m census