She wasted little time in getting back to business and on Monday promoted firebrand leftist economist Axel Kicillof to economy minister. His predecessor, Hernan Lorenzino, was nominated as ambassador to the European Union.
Kicillof, previously the deputy minister, was one of the key advisors in the expropriation of formerly Repsol-held YPF.
Fernandez appeared healthy, upbeat and little different than before the 8 October procedure in an online video message to constituents.
She