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UTAH (ABC4) – With a surge in COVID-19 cases spurred by the Delta variant, the majority of counties in Utah are seeing a high transmission rate of the virus, as of August 19.

According to, case counts of the virus for August 2021 show a general increase from case counts recorded last August in Utah.

A county’s level of transmission is determined by several metrics, according to, including the 7-day average percent positivity rate, the 14-day case rate per 100K population, and the statewide ICU utilization.

For example, if the 7-day average percent positivity rate is over or equal to 10%, that is considered a high level of transmission. Counties with fewer than six people per square mile and less than or equal to 14 cases in the last 14 days are automatically considered low transmission areas.

According to the Utah Department of Health, the following Utah counties fall under high, moderate, and low transmission.

High Level of Transmission:

  • Beaver
  • Box Elder
  • Davis
  • Duchesne
  • Grand
  • Iron
  • Juab
  • Millard
  • Salt Lake
  • San Juan
  • Sanpete
  • Sevier
  • Tooele
  • Uintah
  • Utah
  • Wasatch
  • Washington
  • Weber

Moderate Level of Transmission:

  • Cache
  • Carbon
  • Emery
  • Morgan
  • Summit

Low Level of Transmission:

  • Daggett
  • Garfield
  • Kane
  • Piute
  • Rich
  • Wayne

Visit for more in-depth information regarding how transmission levels are determined.

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