Endvidere kan nyfødte børn, hvis mødre har fået Viread under graviditeten, få mitokondriel dysfunktion (beskadigelse af de energiproducerende cellebestanddele med blodproblemer til følge).
As with all other NRTIs, Viread may also cause lactic acidosis (a build-up of lactic acid in the body) and, in the babies of mothers taking Viread during pregnancy, mitochondrial dysfunction (damage to the energy-producing components within cells that can cause problems in the blood).