YANKTON, S.D.(WNAX)- The Centers for Disease Control now say the B-117 variant is the dominant virus spreading Covid-19 across the country.

Yankton Dr Mike Pietila says people spreading the virus leads to the mutations.

Pietila says it will take time to get to the end of the pandemic.

Pietila says it takes time for resistance to the virus to kick in after a vaccination.

Cases have trended up in the state over the past two weeks, with about twenty five hundred active cases in the latest report.