Mu cigwa giherutse gusohorwa mu kinyamakuru JAMA Network Open, abashakashatsi bo muri Leta Zunze Ubumwe za Amerika (US) batohoje isano iri hagati y'amadeni y'ubuvuzi n'ingaruka z'amagara y'abantu muri Amerika. Basanze ideni ry'ubuvuzi rifitaniye isano n'amagara mabi hamwe n'urupfu rwihuta hamwe n'urupfu mu bantu. Iryo deni rifitaniye isano n'ingaruka mbi ku buzima, nk'amagara atevye, kutisunga amategeko, hamwe n'ibifungurwa vyongerekanye hamwe n'umutekano muke w'uburaro.