Hashize amezi abiri mu Burundi no mu Rwanda havugwa indwara yibasiye inka, izwi nka Rift Valley. Ni indwara yaje itunguranye. Mu gihe ubutegetsi bwari bugikora ubushakashatsi ngo bumenye uko buhangana nayo, bwafashe icyemezo cyo gufunga amabagiro.