▁these ▁contin ents , ▁countries ▁began ▁to ▁imp ose ▁travel ▁b ans ▁and ▁lock down s . ▁Brazil ▁and ▁Mexico ▁began ▁lock down s ▁in ▁late ▁February ▁and ▁much ▁of ▁the ▁rest ▁of ▁South ▁America ▁followed ▁suit ▁in ▁early ▁March . ▁Much ▁of ▁Africa ▁was ▁on ▁lock down ▁by ▁the ▁start ▁of ▁April . ▁Ken ya , ▁for ▁example , ▁blocked ▁certain ▁international ▁fl ights ▁and ▁subsequently ▁placed ▁a ▁ban ▁on ▁' global ' ▁meet ings . ▁ ▁, ▁more ▁than ▁ 2 8 0   mill ion ▁people , ▁or ▁about ▁ 8 6 % ▁of ▁the ▁population , ▁are ▁under ▁some ▁form ▁of ▁lock down ▁in ▁the ▁United ▁States , ▁ 5 9   mill ion ▁people ▁are ▁in ▁lock down ▁in ▁South ▁Africa , ▁and ▁ 1 . 3   b ill ion ▁people ▁are ▁in ▁lock down ▁in ▁India . ▁ ▁Self ▁quar antine ▁▁ ▁Self ▁quar antine ▁( or ▁self - is olation ) ▁is ▁a ▁popular ▁term ▁that ▁emer ged ▁during ▁the ▁ 2 0 1 9 – 2 0 ▁coron av irus ▁pan demic , ▁which ▁spread ▁to ▁most ▁countries ▁in ▁ 2 0 2 0 . ▁Cit iz ens ▁able ▁to ▁do ▁so ▁were ▁encourag ed ▁to ▁stay ▁home ▁to ▁cur b ▁the ▁spread ▁of ▁the ▁disease . ▁ ▁Other ▁uses ▁U . S . ▁President ▁John ▁F . ▁Kennedy ▁eu ph em ist ically ▁referred ▁to ▁the ▁U . S . ▁Navy ' s ▁inter diction ▁of ▁sh ipping ▁en ▁route ▁to ▁Cuba ▁during