- D ill , ▁Hoch ta un us kreis ▁and ▁Gi essen . ▁The ▁cases ▁in ▁L ahn - D ill ▁and ▁Gi essen ▁were ▁linked ▁to ▁the ▁cluster ▁in ▁NR W , ▁and ▁the ▁case ▁in ▁Hoch ta un us kreis ▁to ▁the ▁one ▁in ▁L ahn - D ill . ▁ ▁Lower ▁Sax ony ▁ ▁On ▁ 1 ▁March ▁ 2 0 2 0 , ▁Lower ▁Sax ony ▁reported ▁its ▁first ▁case . ▁ ▁Me ck len burg - Vor p omm ern ▁ ▁On ▁ 4 ▁March ▁ 2 0 2 0 , ▁Me ck len burg - Vor p omm ern ▁reported ▁ 3 ▁cases . ▁ ▁North ▁Rh ine - West phal ia ▁ ▁On ▁ 2 5 ▁February , ▁a ▁ 4 7 - year - old ▁man ▁tested ▁positive ▁in ▁Er k elen z , ▁He ins berg ▁at ▁North ▁Rh ine - West phal ia . ▁He ▁had ▁been ▁previously ▁treated ▁at ▁University ▁Hospital ▁of ▁C ologne ▁on ▁ 1 3 ▁and ▁ 1 9 ▁February ▁for ▁a ▁pre - ex isting ▁medical ▁condition . ▁ 4 1 ▁medical ▁staff ▁members ▁and ▁patients ▁were ▁identified ▁to ▁have ▁had ▁contact ▁with ▁him ▁at ▁the ▁hospital ; ▁one ▁person ▁from ▁medical ▁staff ▁showed ▁sympt oms ▁and ▁tested ▁positive ▁for ▁S AR S - Co V - 2 . ▁ ▁On ▁ 2 6 ▁February , ▁his ▁wife , ▁a ▁kind erg arten ▁teacher , ▁tested ▁positive ; ▁both ▁were ▁isolated ▁at ▁University ▁Hospital ▁of ▁Düsseldorf . ▁His