World Health Organisation (WHO) says transmission happens when those suffering from bilharzia contaminate fresh water sources through urination or defaecation, which carries parasitic eggs that hatch in water
Bungwe lowona zaumoyo pa dziko lonse la pansi anena kuti kupatsilana kumachitika pamene odwlaa likodzo awononga madzi pakukodza kapena kunyela zimene zimatenga mazila a tizilombo kukaikila madzi