Ukuhlinzekwa kwamanzi okuphuza ahlanzekile eduzane nemizana kukhuthaza isimo sezempilo nokuhlanzeka, okubuye kube nomthelela omuhle ekwehleni kwezifo ezinjengomhudo noma i-eye trachoma virus. Izinhlobo ze-Wells nezentwasahlobo eziseduzane nemizana nazo zisindisa isikhathi samantombazane nabesifazane futhi bangakwazi ukuya esikoleni noma ukuqhubeka nokuqeqeshwa, noma bathole imali yabo ngokubamba iqhaza ezinhlelweni ezincane zokubolekwa kwemali. Lokhu kukhombisa ngokusobala ukuthi amanzi ahlanzekile aguqula yonke into. ?