Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. US COVID Vaccinations Still Lagging, Health Officials Say Ken Bredemeier WASHINGTON - The U.S. government's effort to vaccinate millions of Americans against the coronavirus pandemic is lagging, new health officials in President Joe Biden's administration conceded Sunday. But they held out hope that the campaign to curb the virus will markedly improve within three months. "The plane is in a nosedive and we've got to pull it up," Xavier Becerra, Biden's choice as health and human services chief, told CNN about the vaccination progress. "What we inherited didn't work, and now we've got to make it work," Becerra said. He said problems won't be fixed quickly, but that "we can do better...we can get us back to real normality." Before leaving office last week, President Donald Trump praised his administration's efforts to combat the pandemic. Biden has set a goal of administering 100 million vaccination shots in his first 100 days in office. Last week, he signed orders to ramp up the production of more doses of two vaccines now approved for use and other medical equipment needed to treat those who have contracted COVID-19, the infectious disease caused by the virus. That pace of vaccinations is now roughly on track to be met, which would inoculate about 67 million people, some with their initial shot and some with both of their required shots. Some critics say the pace should be quicker. Becerra said, "Getting 100 million shots out there in 100 days is incredibly important. It's ambitious, it's bold, it's doable. We have to do it." Biden's chief medical adviser, Dr. Anthony Fauci, told CBS News's "Face the Nation" show, the number was "a floor, not a ceiling." Dr. Rochelle Walensky, the new director for the Centers for Disease Control and Prevention, told the "Fox News Sunday" program, "We have to go faster," but that the lack of a sufficient supply of the vaccine may prevent that. "The supply is probably going to be the most limiting constraint," she said. "We're really hoping that after that first 100 days we're going to have much more production." "I'm hopeful we'll get an increase in supply, not a stagnating one. We don't have as many doses now that we would like," she said. Walensky said she hopes that changes by the end of March. "One of the biggest problems we have right now is that I can't tell you how much vaccine we have," she said. Walensky said that if she cannot tell state governors and health officials how much vaccine they will be receiving, "then they can't plan...they can't figure out how many appointments to make." .