covid-19 modeling august 21, 2020 - dfr.vermont.gov...covid-19 modeling august 21, 2020 presentation...
TRANSCRIPT
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COVID-19 Modeling August 21, 2020
Presentation available at:dfr.vermont.gov
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National Data
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3Source: Johns Hopkins University - August 20, 2020
National Data
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Cases decreasing in South & West
Cases slowing in Midwest & Northeast
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5Source: COVID Tracking Project - August 20, 2020
National Data
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Regional Data
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7Sources: COVID-19 Tracking Project, New York Time Covid-19 Database & Government of Quebec
Regional Monitoring: New Cases Week Over Week
Positive Cases August 14th to August 20th
9.98% Decrease in New Confirmed Cases
Positive Cases August 7th to August 13th
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Regional Monitoring: Week Over Week Case Growth Since May 21, 2020
Sources: COVID-19 Tracking Project, New York Time Covid-19 Database & Government of Quebec
Third week with cases decreasing in the Northeast
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Vermont Data
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Vermont Weekly Totals
Sources: Vermont Department of Health (week ending Thursday)
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11Source: Vermont Department of Health - August 21, 2020; tests measured as results reported to VDH by day
Increased testing: 15,000+ tests over the last 7 days
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RESTART VERMONT
1. Syndromic Surveillance2. Viral Growth & Reproductive Rates3. Percentage of New Positive Tests4. Hospital & Critical Care Bed Capacity
Reopening Metrics
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Data Point 1: Syndromic Surveillance● Summary: Percentage of visits with COVID-19 like illness and Influenza diagnosis● Warning Flag: Percentage of visits exceeding 4% for multiple consecutive days
Source: Vermont Department of Health - August 21, 2020
Measure currently well below warning flag level
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Data Point 2: Viral Growth and Reproductive Rates ● Summary: Case growth measured by daily, 3-day, 7-day, and effective reproductive rate (Rt)● Warning Flags: Sustained viral growth that would lead to <30% of open ICU beds
Source: Vermont Department of Health - August 20, 2020
Continued low growth rate
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Data Point 3: Percentage of New Positive Tests● Summary: Percent of tests resulting in a new positive case● Warning Flags: New positives represent >5% of daily results
Source: Vermont Department of Health - August 20, 2020
Test positivity under 0.5%
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Data Point 4: Hospital & Critical Care Beds● Summary: Number of occupied and unoccupied medical surgical and ICU beds● Warning Flags: Reduction in ICU open beds to less than 30%
Source: Vermont Department of Health - August 20, 2020
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Vermont ● ~25% of VT lives in Chittenden Co. ● 16.68% of all statewide cases have occured in
Chittenden Co. (18.57% of all statewide cases since the start of the pandemic)
New Hampshire ● ~30% of NH lives in Hillsborough Co. ● 29.15% of all statewide cases have occured in
Hillsborough Co. (Manchester & Nashua) (32.52% of all statewide cases since the start of the pandemic)
Maine● ~22% of ME lives in Cumberland Co.● 22.56% of all statewide cases have occured in
Cumberland Co. (Portland) (24.66% of all statewide cases since the start of the pandemic)
Percent of State-wide Cases Concentrated in Most Populous County Since June 15
Cases per million since June 15
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Vermont Forecast Model
Source: Oliver Wyman Forecast Model - August 21, 2020
Possible spikes from returning out-of-state college students
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Travel Map Update
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Updated Travel Map
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Improving: Moving from Yellow or Red to Green Worsening: Moving to Yellow or Red
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Updated Travel Map
Travel Map Expanded