Fig. 2From: Regional opening strategies with commuter testing and containment of new SARS-CoV-2 variants in GermanyImplementation of commuter testing and traveling. Testing rates are applied according to the defined strategy and the states of the neighboring regions (red or green). Carriers or infectious who are tested positive become part of \(C^+_i\) and \(I^+_i\) and are isolated accordingly. These individuals will not travel anymore before recoveryBack to article page