ISIQEPHU: Abacwaningi nezinhlangano eziningi babikezele ukuthi ukushintsha kwesimo sezulu kuzobangela amagagasi angakaze abonwe okufuduka kwabantu abaningi. UCarolina Fritz weMPI uhlola izixhumanisi eziyinkimbinkimbi phakathi kokushintsha kwesimo sezulu nokufuduka, ukuthi lezi zixhumanisi zinethonya kanjani futhi kuphi amaphethini okufuduka kwamanje nawesikhathi esizayo, kanye nezinye zezinkinga zokubikezela ukugeleza kwesikhathi esizayo.