Here are some significant developments:
- More than 4 million people in the United States received a coronavirus vaccine on Saturday — the nation’s highest one-day total since the shots began rolling out in December — amid a rising caseload and increase in hospitalizations.
- New Zealand said Tuesday it was launching a quarantine-free travel bubble with Australia later this month. Travelers would still be subject to a range of restrictions but the new scheme could help reunite families separated by the pandemic.
- China is offering its citizens an array of incentives, including free food, to ramp up a flagging vaccine drive that aims to inoculate 40 percent of its enormous population by June.
- Montana Gov. Greg Gianforte has tested positive for the coronavirus, his office said on Monday.
- More than 556,000 people have died due to the coronavirus in the United States, out of at least 30.7 million confirmed infections.