Denmark has not registered any new examples of humans infected with a so-called Cluster-5 mutated coronavirus strain stemming from mink, Health Minister Magnus Heunicke said on Friday. Denmark last week ordered the culling of millions of mink after finding that the mutated virus, which infected 12 people in August and September, showed decreased sensitivity to antibodies, potentially lowering the efficacy of future vaccines. The country's State Serum Institute (SSI), which deals with infectious diseases, said random checks did not show any new cases of Cluster-5 in humans between Oct. 12 and Oct. 25.