Covid-19 vaccinations in the past few days after a slower-than-expected start, bringing the number of shots dispensed to about 4 million, government health officials said Sunday.Dr Anthony Fauci, the nation's top infectious-disease expert, also said on ABC's “This Week" that President-elect Joe Biden's pledge to administer 100 million shots of the vaccine within his first 100 days in office is achievable.Also Read | A year on, China is shaking up the worldAnd he rejected President Donald Trump's false claim on Twitter that coronavirus deaths and cases in the US have been greatly exaggerated.“All you need to do ...