Reopening Key Metrics

REOPENING KEY METRICS

This website is updated multiple times per day. The graph of case data is updated weekly, as the data lags because it is based on the day the tests were taken, not the day results were received. There is a lag to ensure that the data for each day is correct and complete.

Transmission Rate

14-Day New Case Trend

Public Health Capacity

Testing Capacity

Hospital Capacity: Floor Beds

Hospital Capacity: ICU Beds

 

 

Explanation of Metrics:

Transmission Rate

The transmission rate is the rate at which infectious cases cause secondary or new cases in a population. A transmission rate of 1.0 means that each person who has the virus passes it to one other person. A transmission rate above a rate of 1.0 signals a spread; a rate below 1.0 signals the spread is slowing. The rate of transmission declining or remaining low is a critical to proceeding to each stage of reopening Metro.

Goal: Less Than 1.0 Transmission Rate
Current: 1.2 Transmission Rate 

14-Day New Case Trend

Public health officials agree that each phase of the Roadmap for Reopening Nashville should begin only after 14 days of significant declines. Although most cases occur within 5-7 days of exposure, almost all are evident by 14 days. A sustained downward trend in cases over the course of the 14 days is critical to proceeding to each stage of reopening Metro.

Goal: Flat or Decreasing Trend in New Cases
Current: Increasing Trend in New Cases 

Source: Metro Public Health Department

Public Health Capacity

Metro’s Public Health Capacity is defined by its ability to rapidly interview those who have tested positive for COVID-19, identify close contacts, and ensure that isolation and quarantine are effective. The Metro Department of Public Health needs resources to conduct rapid investigations and monitor cases and contacts effectively. Estimates of personnel needs for these tasks range from 4 to 15 contact investigators per 100,000 population. That translates to 28-105 investigators for Davidson County, along with similar numbers of case and contact monitors.

Goal: 28 – 105 Contact Investigators for Davidson County
Current: 120 Contact Investigators for Davidson County

Source: Metro Public Health Department

Testing Capacity

Ensuring adequate diagnostic testing capacity and delivering rapid test results are a prerequisite for reopening Nashville. Nashville is currently able to conduct 5,000 tests a week, which is consistent with the common benchmark of 1 test per 100-150 residents per week. Adequate testing capacity is necessary to allow employers overseeing vulnerable populations, such as health care facilities, nursing homes and assisted living facilities, and jails, to be vigilant in monitoring for COVID-19.

Goal: 4,667 Tests per Week
Current: 7,585 Tests per Week (June 15 – 21) 

Source: Metro Public Health Department

Hospital Capacity: Floor Beds

Access to floor beds is tracked to ensure the Nashville health care system has the capacity to manage both the existing case load and a potential surge. Nashville will continue to track and share information about the availability of hospital beds, ICU beds, ventilators, and personal protective equipment (PPE) to ensure that they are adequately available if cases surge, as modeled under a variety of assumptions.

Goal: 20% of Floor Bed Capacity Available
Current: 18% of Floor Bed Capacity Available (As of 07/10 at 9:30 a.m.)

Source: Tennessee Healthcare Resource Tracking System

Hospital Capacity: ICU Beds

Access to intensive care unit, ICU, beds is tracked to ensure the Nashville health care system has the capacity to manage both the existing case load and a potential surge. Nashville will continue to track and share information about the availability of hospital beds, ICU beds, ventilators, and personal protective equipment (PPE) to ensure that they are adequately available if cases surge, as modeled under a variety of assumptions.

Goal: 20% of ICU Capacity Available
Current: 19% of ICU Capacity Available (As of 07/10 at 9:30 a.m.)

Source: Tennessee Healthcare Resource Tracking System