A dry run for Covid vaccine will be held in all states on Saturday, January 2, the government said as authorities hinted that approval for a vaccine could be around the corner. Today, the Union Health Secretary chaired a high-level meeting with all states and Union Territories. This is the second dry run being conducted in the country -- the first was held on December 28 and 29 in four states and had gone off without a hitch, the health ministry said.