 Amagerageza yawo ku barwayi mu bice bitandukanye byisi yari yakomwe mu nkokora nubushakashatsi bwasohotse mu kinyamakuru The Lancet cyubushakashatsi mu buvuzi, bwavuze ko wongereye umubare wimpfu ndetse ugateza ibibazo byumutima ku barwayi bamwe. 