Norman County hosts coronavirus testing after outbreak among students The pandemic has forced schools and families to make big adjustments, and at Norman County East in Twin Valley, a recentspike in COVID-19 cases forced mass testing, and classes at home. Written By: Kevin Wallevand | × Residents entering a COVID-19 testing clinic in Twin Valley, Minnesota, where infections are on the rise.Andrew Nelson / WDAY TWIN VALLEY, Minn. — Fresh snow and a blue sky framed Twin Valley Wednesday, Feb. 25, as families like Nicole Pederson and her three girls came to the community center in Twin Valley for coronavirus testing. Recently, 36 cases have been reported in Norman County, most of them coming from recently reopened schools.