6 ; ▁members ▁of ▁the ▁ 8 th ▁W HO ▁Emer gency ▁Committee ▁critic ised ▁international ▁travel ▁restrictions ▁im posed ▁during ▁the ▁ep ide mic ▁as ▁in effect ive ▁due ▁to ▁difficulty ▁of ▁enfor cement , ▁and ▁counter product ive ▁as ▁they ▁slow ed ▁down ▁aid ▁efforts . ▁The ▁People ' s ▁Republic ▁of ▁China ▁has ▁employed ▁mass ▁quar ant ines ▁– ▁first ly ▁of ▁the ▁city ▁of ▁Wu han ▁and ▁subsequently ▁of ▁all ▁of ▁H ube i ▁province ▁( pop ulation ▁ 5 5 . 5 ▁million ) ▁– ▁in ▁the ▁ 2 0 1 9 – 2 0 ▁coron av irus ▁pan demic . ▁After ▁few ▁weeks , ▁the ▁Italian ▁government ▁im posed ▁lock down s ▁in ▁all ▁the ▁country ▁( more ▁than ▁ 6 0 ▁million ▁people ) ▁to ▁stop ▁the ▁coron av irus ▁pan demic . ▁During ▁the ▁ 2 0 1 9 – 2 0 ▁coron av irus ▁pan demic , ▁India ▁quar ant ined ▁itself ▁from ▁the ▁world ▁for ▁a ▁period ▁of ▁one ▁month ▁ ▁Sign als ▁and ▁flags ▁▁ ▁P lain ▁yellow , ▁green , ▁and ▁even ▁black ▁flags ▁have ▁been ▁used ▁to ▁symbol ise ▁disease ▁in ▁both ▁ships ▁and ▁ports , ▁with ▁the ▁colour ▁yellow ▁having ▁a ▁longer ▁historical ▁preced ent , ▁as ▁a ▁colour ▁of ▁mark ing ▁for ▁houses ▁of ▁in fection , ▁previous ▁to ▁its ▁use ▁as ▁a ▁mar itime ▁mark ing ▁colour ▁for ▁disease . ▁The ▁present ▁flag ▁used ▁for ▁the ▁purpose ▁is ▁the ▁" L ima " ▁( L ) ▁flag