Dec.11 -- Dr. Robert Gallo, co-founder and scientific director of the Global Virus Network and the director of the Institute of Human Virology at the University of Maryland School of Medicine, discusses the rollout of the Covid-19 vaccines. The first Covid-19 vaccine expected to be deployed in the U.S. won the backing of a panel of government advisers, a step that will likely help clear the way for emergency authorization by the Food and Drug Administration. Gallo, who co-discovered HIV as the cause of AIDS in 1984, speaks with Haidi Stroud-Watts and Shery Ahn on "Bloomberg Daybreak: Australia."