“Almost 130 million people 18 or older have received at least one dose of a vaccine, or 50.4% of the total adult population.” Half of US adults have received at least one COVID-19 shot. (Now comes the hard half.)

+ NYT: Scientists have estimated that 70 to 90 percent of the total population must acquire resistance to the virus to reach herd immunity. But in hundreds of counties around the country, vaccination rates are low, with some even languishing in the teens.” You’ll never guess what those counties have in common.

+ Counties are different. And countries are even more different. Australia-New Zealand travel bubble opens with joy, tears. Meanwhile, India’s capital to lock down amid explosive virus surge. And from BBC: Covid in Brazil: Hunger worsens in city slums.