Australia Nixes Vaccine Target; U.S. Cases Steady: Virus Update Bloomberg 11 mins ago Australia has abandoned a vaccine rollout target amid delays, while the rate of new infections across the U.S. was barely changed on Saturday as the country’s vaccination push gathered pace. Federal Reserve Chair Jerome Powell said the U.S. economy is at an “inflection point” with stronger growth and hiring ahead but that Covid-19 remains a threat. Singapore reported a positive test in a fully vaccinated worker. China’s Center for Disease Control and Prevention is considering mixing vaccines to improve the efficacy of its current shots, which is “not high,” a top Chinese health official was quoted as saying.