(AP) — Global stock markets are pushing higher after the release of more upbeat data about the coronavirus vaccine being developed by Pfizer and BioNTech. Pfizer said Wednesday that the vaccine it is developing is even more effective than first announced. The statement comes as the company is preparing within days to formally ask U.S. regulators to allow emergency use of the vaccine. Investors are weighing optimism about vaccines against news that the infection numbers in the United States and Europe are high and rising in many cases, posing a threat to businesses.
