Mu myaka ishize, mu ntara nto ya New Brunswick muri Canada, abaganga batangiye kubona abantu bafite ibimenyetso bidasanzwe by’uburwayi bwo mu bwonko byagaragazaga gucika intege mu mitekerereze, guhagarara nabi kw’imitsi, kwibagirwa, n’ibindi.
Ibi byatumye hatangizwa iperereza ryimbitse, kandi bamwe mu bahanga bagaragaje ko bishobora kuba indwara nshya idasanzwe.
Uyu mubare w’abantu wagiye uzamuka kugeza ku bagera ku 500, bitewe n’uko umuganga w’ubyonko Dr Alier Marrero yakomeje kwakira abarwayi benshi bafite ibimenyetso bidafututse.
Abantu benshi bari bateze amatwi iki kibazo kubera ubwoba ko hashobora kuba hari indwara yo mu bwonko itaramenyekana.
Ariko mu mwaka wa 2025, icyegeranyo cyasohotse mu kinyamakuru cy’ubuvuzi JAMA Neurology cyasuzumye iby’ibimenyetso by’abantu 25 bari barashyizwe muri ubwo buryo bwo kuba bafite “indwara idasanzwe”, maze nticyabonye gihamya y’aho hari indwara nshya mu bwonko kitazwi.
Ibyo byerekanye ko abantu bose bari bafite indwara zizwi neza mu buvuzi, nk’imfu y’uturemangingo tw’ubwonko (Parkinson’s, Alzheimer’s), ibikomere by’ubwonko nyuma yo kugonga umutwe, Functional Neurological Disorder (indwara y’imikorere y’ubwonko ishingiye ku byiyumviro), ndetse n’ibindi.
Abahanga bagaragaje ko ibimenyetso byose byari byasobanuwe n’izo ndwara zisanzwe, kandi nta bimenyetso bifatika byerekana ko hari ‘ubundi burwayi bushya’ busa n’ubwo twigeze kumva.
Hari kandi n’ibitekerezo ko amakuru menshi mu bitangazamakuru no ku mbuga nkoranyambaga byaba byarabatijweho amakuru atariyo, bigatuma habaho ubwoba budafite ishingiro ko hari indwara itaramenyekanye.
Abantu bamwe baracyanenga ibyo bisubizo, bavuga ko ibibazo byabo bidahagije gusobanurwa neza n’indwara zisanzwe, kandi ko bishobora guterwa n’ibintu byo mu bidukikije cyangwa umwanda. Nyamara abashakashatsi bavuga ko nta gihamya cyerekana ko hari indwara nshya koko.
Uyu mwuka wa “mystery brain disease” igaragaza uko ubushakashatsi bw’ubuvuzi, itangazamakuru, n’imyumvire ya rubanda bishobora gutera impaka ku buzima bw’abantu. Nubwo abantu 500 bagaragaje ibimenyetso bidasanzwe, ubushakashatsi bw’ubuvuzi kugeza ubu ntibwerekanye ko hari indwara nshya koko ahubwo ibimenyetso byabayeho kubera indwara zihanzweho zizwi mu buvuzi cyangwa izindi mpamvu zitari indwara nshya.
