Courtesy Image An illustration of the coronavirus provided by the U.S. Centers for Disease Control and Prevention.

ALPENA — As of Thursday, 668 Northeast Michiganders were actively infected with COVID-19, while about 56.98% of Northeast Michiganders 5 and older had been fully vaccinated against the disease.

This week’s active infections — a News estimate based on cumulative infections minus deaths and those who fit the U.S. Centers for Disease Control and Prevention’s definition of recovered — is down from 927 active infections last week.

Meanwhile, among those 5 and older, the state says 55.20% of Alpena County residents, 60.60% of Presque Isle County residents, 54.60% of Montmorency County residents, and 57.50% of Alcona County residents have been fully vaccinated against the coronavirus.

The chart below shows the number of Northeast Michiganders actively infected with COVID-19, a News estimate based on cumulative infections minus recoveries and deaths. The story continues below the graphic.

Public health experts have said we could consider the coronavirus pandemic over once 70% of the population has been vaccinated.

In the past week, public health officials have reported 159 newly infected or probably infected Northeast Michiganders and the deaths of 11 Northeast Michiganders who had been infected with COVID-19.

The chart below shows the number of Northeast Michiganders 5 and older fully vaccinated against COVID-19. The story continues below the graphic.

Since February, Northeast Michigan health officials have reported confirmed and probable infections as one number. A person counts as a probable infection if they’d been exposed to a confirmed infected person and are showing symptoms but hadn’t been tested, themselves — such as family members of infected people.