▁to ▁travel ▁during ▁the ▁E aster ▁hol id ays . ▁ ▁On ▁ 2 ▁April , ▁the ▁Robert ▁Koch ▁Institute ▁changed ▁its ▁previous ▁recommendation ▁that ▁only ▁people ▁with ▁sympt oms ▁should ▁wear ▁mask s ▁to ▁also ▁include ▁people ▁without ▁sympt oms . ▁A ▁general ▁oblig ation ▁to ▁wear ▁mask s ▁in ▁public , ▁not ▁supported ▁by ▁the ▁federal ▁government ▁and ▁most ▁regional ▁govern ments , ▁was ▁discussed . ▁It ▁faced ▁the ▁counter - argument ▁of ▁general ▁short ages ▁of ▁protection ▁g ear ▁that ▁could ▁not ▁even ▁guarantee ▁supply ▁for ▁the ▁health ▁care ▁and ▁maintenance ▁system . ▁At ▁least ▁ ▁of ▁German ▁medical ▁personnel ▁in ▁hosp it als ▁were ▁confirmed ▁to ▁have ▁contract ed ▁S ars - Co V - 2 . ▁The ▁number ▁of ▁cases ▁from ▁other ▁medical ▁se ctors ▁was ▁not ▁system atically ▁collected ▁and ▁thus ▁not ▁known ; ▁most ▁federal ▁state ▁govern ments ▁and ▁the ▁Federal ▁Health ▁Ministry ▁replied ▁to ▁a ▁team ▁of ▁investig ating ▁journal ists ▁that ▁no ▁information ▁could ▁be ▁given . ▁In ▁Bav aria , ▁where ▁ 2 4 4 ▁medical ▁practices ▁had ▁been ▁closed ▁due ▁to ▁quar antine ▁( 1 4 1 ), ▁lack ▁of ▁protection ▁g ear ▁( 8 2 ) ▁and ▁a ▁lack ▁of ▁child care ▁( 2 1 ), ▁the ▁Bav arian ▁State ▁Ministry ▁for ▁Health ▁and ▁Care ▁instruct ed ▁its ▁health ▁depart ments ▁not ▁to ▁answer ▁the ▁request ▁for ▁information . ▁ ▁April ▁▁ 6 – 1 2 ▁April ▁ ▁On ▁ 7 ▁April , ▁the ▁Robert ▁Koch ▁Institute , ▁in ▁partners hip