 Dr Emmanuela Gakidou oo ka mid ah soosaareyaasha sare ee cilmi baaristan ayaa sheegay in inkastoo nus qarnigii u dambeeyay cadaymo ku filan loo hayay in tubaakadu ay caafimaadka u daran tahay, haddana afartii rag ah ee dunida joogaba mid ka mid ah ayaa sigaaryo cab ah. 