Helen Branswell: Vaccine experts are worried the US is sleepwalking into annual Covid-19 boosters without evidence they're needed. / STAT

As of the end of February, nearly 60 percent of Americans have been infected with the coronavirus, including three out of four children. / Poynter

Reports from the Coachella Valley's nine cities say cases spiked 77% after the recent music festival's first weekend. / The Los Angeles Times

In Rwanda, a drone startup has been delivering blood to mountainous areas for five years, covering 80% of the country. / WIRED

Indigenous groups in Canada use radar to identify possible graves at former schools—more than 1,800 have been found so far—"confirming an open secret." / Undark

Lawsuits to fight carbon emissions are rapidly multiplying, with cases in 41 countries. / The Economist

See also: A doomsday alarm clock app wakes you with "bone-chilling facts about our eventual demise." / App Store

Russia suspends its gas supply to Poland and Bulgaria. / Reuters

Five items that are reasonably inflation-resistant: cannabis, tomatoes, books, alcohol, wood. / Wealthsimple

Tesla loses more than $125 billion of market value in response to Elon Musk's plan to buy Twitter. ("Why can't billionaires do something useful like get One Direction back together.") / BBC News, Twitter

Rural gentrification refers to city-dwellers finding "deals" in the country that price out local residents. / The New Republic

"The countryside of Japan is aging into nothingness." A walk with Craig Mod through villages on the Kii Peninsula. / The New York Times

From Tim Hunkin, co-creator of the series The Secret Life of Machines, some charming videos called "The Secret Life of Components." / TMN

From March, a thread of poorly edited or staged family photos from movies and television. / Twitter

Related: Art directors respond to the thread. "Up until the early 2000s no one cared." / The Guardian