Kunezizathu eziningi zokuvinjelwa kwamathumbu emathunjini, futhi ezivame kakhulu iziguli ezinezimila ezimbi ezihlukahlukene, ikakhulukazi izimila eziyingozi emathunjini. Ngokwezibalo ezingaphelele, cishe amaphesenti angu-30 eziguli ezinezimila zokugaya ukudla zizobhekana namazinga ahlukene okuvinjelwa, okuholela ngokuqondile ekutheni iziguli zingakwazi ukudla ngendlela evamile, okuhambisana nobuhlungu besisu, ukuqunjelwa, futhi ezimeni ezinzima, ukubhobozwa kwamathumbu, ngisho nangokwengeziwe. izimo ezisongela ukuphila.