BA.2 subvariant sparks new rise in cases in Johnson County — Here’s what we know

According to county data, percent positivity is now 6.1%, compared to 2.2% a month ago, but officials caution that's likely an undercount, given that most testing is now being done at home and people may not be reporting their results. Above, a woman gets tested at a mass drive-thru site in Overland Park earlier this year. File photo courtesy KCUR 89.3.

A new and highly transmissible subvariant of COVID-19 has found its way to Johnson County, resulting in an uptick in cases this week and a recommendation for those at high risk to be vigilant and wear masks.

Elizabeth Holzschuh, director of epidemiology for the county health department, told county commissioners Thursday that the case rate and positive test percentages are trending upward, indicating that the BA.2 version of Omicron coronavirus is here.