Shots are rolling out from Pfizer Inc. and Moderna Inc., focused at first on hundreds of thousands of health-care workers around the country The U.S. now leads the world in Covid-19 vaccine shots administered, with more than 1.12 million doses given in the first 10 days of its campaign, according to state-by-state data compiled by Bloomberg. Three states have now vaccinated more than 1% of their populations: North Dakota, West Virginia, and Alaska. California leads in total vaccinations at 128,000 shots. The numbers fall short of a U.S. goal to administer 20 million shots in 2020, U.S. officials acknowledged Wednesday. That amount will be disbursed to states by the end of the month, but not in time to be administered. Shots are rolling out from Pfizer Inc. and Moderna Inc., focused at first on hundreds of thousands of health-care workers around the country who have been battling the virus on the front lines in hospitals. The vaccines require two shots weeks apart to deliver the h...