In the past few weeks, Horizon Public Health (HPH) has seen a jump in the number of new cases in its communities. On July 15th, the 5 HPH counties combined had a total of 9 active cases. As of July 29th, there are 47 active cases. The Delta variant was relatively non-existent in Minnesota a few short months ago and now accounts for over 85% of new cases.  This variant has quickly become the dominant strain circulating which is concerning because it is known to spread twice as easily from person to person.

Currently, the COVID-19 vaccines (Johnson & Johnson, Moderna, and Pfizer) authorized for emergency use in the United States remain highly effective at preventing people from getting symptomatic or severe COVID-19. Breakthrough infections happen when a person gets infected with the virus, despite being fully vaccinated. This still impacts only a small percentage of the total number of people who are fully vaccinated.  To put this in perspective in Minnesota, breakthrough infections currently account for less than 0.1% of the population in comparison to the more than 3 million doses that have been administered. The good news is that these people usually have mild infections. The news from the CDC this week is that there is early evidence that individuals who develop a breakthrough infection with the Delta variant, can become infectious and spread it to others…a scenario that we were not seeing with earlier forms of the virus.

As a direct result of the Delta variant’s increased ability to spread, the Centers for Disease Control and Prevention (CDC) issued new recommendations this week for fully vaccinated people:

Fully vaccinated individuals, with a known exposure to someone with suspected or confirmed COVID-19, should be tested 3-5 days after exposure and should wear a mask for 14 days when in public indoor settings or until they receive a negative test.

Individuals who are fully vaccinated should wear a mask when in public indoor settings when in an area identified as having “Substantial” or “High” community transmission. There are two indicators that are being used in determining the transmission of the virus in a community. These indicators include the percentage of cases testing positive, in addition to the total number of new cases per 100,000 people.  To put this into perspective, if your county is color-coded orange (“Substantial” transmission) or red (“High” transmission), the CDC now recommends that you wear a mask indoors. This information and more can be found on the CDC COVID Data Tracker website:  or on Horizon Public Health’s dashboard:

Lastly, the CDC recommends that fully vaccinated individuals, especially those who are immunocompromised, at increased risk for severe disease from COVID-19 or have someone in their household who is immunocompromised or not fully vaccinated, consider wearing a mask regardless of the level of community transmission, given the new evidence of the Delta variant circulating. Keeping the health and safety of our neighbors in mind is something we as Minnesotans take pride in.

Vaccination continues to be the best preventative measure we can take to protect ourselves and our community against COVID-19. The vast majority of those getting seriously ill continue to be those not vaccinated.  If you have not yet received your vaccine, visit your local pharmacy, health care provider or contact Horizon Public Health.  Let’s stop the spread so we can continue our progress forward out of this pandemic.