Wall Street’s major indexes were set to open higher on Tuesday as better-than-anticipated factory data from China and hopes that a coronavirus vaccine will be rolled out before the end of the year strengthened bets of a fast economic recovery.Investors are closely following updates on a handful of leading vaccine candidates as well as the initiation of global shipments as drugmakers submit paperwork for regulatory approvals.Pfizer Inc gained roughly 2.3% in premarket trade as drugmaker and Germany’s BioNTech SE sought emergency approval of their vaccine from the European regulator.The partners are now neck-and-neck with competitor Moderna, which stated on Monday it would ask the EU regulator to recommend conditional approval for its shot.