Good morning. We're covering the origin of the Covid virus — as well as the G7 summit, policing and soccer.
Dueling theoriesThe origin of the Covid virus remains the pandemic's biggest mystery. Did the virus jump to human beings from animals being sold at a food market in Wuhan, China? Or did the virus leak from a laboratory in Wuhan? U.S. officials remain divided. The F.B.I. and the Department of Energy each concluded that a lab leak was the more likely cause. The National Intelligence Council and some other agencies believe that animal-to-human transmission is more likely. The C.I.A. has not taken a position. The question remains important partly because it can inform the strategies to reduce the chances of another horrific pandemic. A recent Times Opinion essay — by Alina Chan, a biologist — refocused attention on the issue by making the case for the lab-leak theory. In today's newsletter, I'll try to lay out the clearest arguments for each side to help you decide which you consider more likely. The case for natural transmission1. It's the norm. Covid is part of the coronavirus family, so named because the virus contains a protein shaped like a spike. (Corona is the Latin word for crown.) In recent decades, the main way that coronaviruses have infected people is through animal-to-human transmission, which is also known as natural transmission. The SARS virus, for example, appears to have jumped from civet cats, a relative of the mongoose, to humans in Asia in 2002. MERS seems to have jumped from camels to people in the Middle East around 2012. There is no previous example of a major coronavirus escaping a lab. When you're trying to choose between a historically common explanation for a phenomenon and an unusual explanation, the common one is usually the better bet. 2. Look around the market. Two scientific papers have pointed out that a suspiciously large number of early confirmed Covid cases had connections to the Huanan Seafood Wholesale Market in Wuhan. Many of these cases, in late 2019, occurred in people who lived near the market. This map comes from a Times story about the research:
Importantly, the market also sold live animals, including raccoon dogs, that scientists previously found to be susceptible to coronaviruses. 3. Look inside the market. Shortly after Covid began spreading, Chinese scientists swabbed walls, floors and other surfaces inside the Huanan market for the virus. They found a cluster of positive samples in the market's southwest corner, where 10 stalls sold live animals. "Strikingly, five of the samples came from a single stall," my colleagues Carl Zimmer and Benjamin Mueller wrote. That stall appears to have had a history of selling raccoon dogs. The case for a lab leak1. Follow the lab. If historical logic points to natural transmission, a different concept arguably points to a lab leak: Occam's razor. It's a philosophical principle holding that the simplest explanation for a phenomenon is usually the correct one. In this case, a new SARS-like virus started in a city with one of the world's leading labs for researching SARS-like viruses. Many Chinese cities have markets selling live animals; only one is home to the Wuhan Institute of Virology. The Wuhan lab maintained "one of the world's largest repositories of bat samples, which has enabled its coronavirus research," U.S. intelligence officials have written. Before the pandemic, the lab's scientists traveled to faraway caves to collect virus samples. And bats, like raccoon dogs, can carry coronaviruses. One possibility is that a virus that would otherwise have remained in the caves infected a lab employee. Another possibility is that scientists in Wuhan engineered a contagious new virus while researching cures and that the virus accidentally escaped. Notably, there is no evidence of any infected animals, dead or alive, from the Huanan market. Consider this table, from Chan's Opinion essay:
2. Leaks happen. In recent decades, reports suggests that laboratory employees working on a variety of diseases have been accidentally infected in the United States, Britain, China, Germany, Russia, South Korea and elsewhere. Even before the pandemic, the Wuhan lab seemed to present a safety risk. When one outside expert heard that the lab planned to research coronaviruses without using state-of-the-art precautions, he wrote in 2018 that "U.S. researchers will likely freak out." 3. China controls the evidence. It's worth asking which of the two stories China would rather the world believe. Either would be damaging, but a lab leak seems significantly more so. It would mean that China's scientific incompetence killed millions of people — which could explain why Chinese officials have worked so hard to restrict outside research and scrutiny about the virus's origins. The bottom lineDo you find both explanations plausible? I do. As I've followed this debate over the past few years, I have gone back and forth about which is more likely. Today, I'm close to 50-50. I have heard similar sentiments from some experts. "No one has proof," Julian Barnes, who covers intelligence agencies for The Times, told me. "Everyone is using logic." Julian's advice to the rest of us: "Be wary, keep an open mind, rule nothing out." Related: Read the letters that The Times published in response to Chan's essay.
Supreme Court
Trump in Washington
More on Politics
G7 Summit
Israel-Hamas War
Other Big Stories
Opinions A former governor is using the courts to stifle local reporting. If he prevails, it will hurt press freedom nationwide, Adam Ganucheau, Mississippi Today's editor in chief, writes. Ronald Reagan governed like an old man, even when he received criticism about his age. Biden's problem is he seems to be in denial, Maureen Dowd argues. Here are columns by Michelle Goldberg on the movie "The Apprentice" and David Brooks on gifted children. The Games Sale. Limited time offer. Come play with us. Subscribe to New York Times Games for 50% off your first year. Strengthen your Wordle strategy with WordleBot (now in the app), reach Genius on Spelling Bee, and play The Crossword, Tiles and more.
Treasure hunter: A magnet fisherman pulled up a safe holding thousands of dollars. One problem: The bills were disintegrating. No headphones: Some people are bothered by the liberal use of speakerphones. Ethicist: "My son's ex-girlfriend wants to keep her pregnancy. Is that unfair to him?" Lives Lived: Moody ballads like her 1962 breakthrough, "Tous les Garçons et les Filles," made Françoise Hardy a hero to French youth. Her lithe look and understated personality incarnated a 1960s cool her nation still treasures. She died at 80.
European Championship: The most important man in Germany this month is its soccer coach. N.H.L.: The Florida Panthers outlasted the Edmonton Oilers to go up 3-0 in the Stanley Cup Final, one win away from a championship. N.F.L.: The Jacksonville Jaguars agreed to a five-year, $275 million contract extension with quarterback Trevor Lawrence. Golf: At the U.S. Open, Rory McIlroy and Patrick Cantlay both shot five-under 65s to tie for the first-round lead.
Meet an editor who altered American culture: Judith Jones. She discovered Julia Child and saved the diary of Anne Frank from a slush pile. But her most significant contribution was developing modern cookbooks, turning them into literary works with her high standard for prose. "Judith wasn't just interested in recipes," said Madhur Jaffrey, an Indian-born cookbook author who worked with her. "She was interested in the people behind them and their culture. This was radical for the time." More on culture
Showcase fresh summer peaches with a simple cake-style cobbler. Reap the sweet rewards of bitter melon. Slather on a user-friendly sunscreen. Create a new tradition by giving a simple tote bag as a gift. Take our news quiz.
Here is today's Spelling Bee. Yesterday's pangram was nightly. And here are today's Mini Crossword, Wordle, Sudoku, Connections and Strands. Thanks for spending part of your morning with The Times. See you tomorrow. —David P.S. Ahead of the Tonys this weekend, two Times theater writers, Jesse Green and Michael Paulson, will take part in a Q.&A. on Reddit's Broadway forum today. Sign up here to get this newsletter in your inbox. Reach our team at themorning@nytimes.com.
|
Rama i përgjigjet komentuesit se nuk ka më fëmijë: 238 mijë nxënës marrin
libra falas. Kemi investuar në shkolla të reja, laboratorë inteligjentë dhe
dyfishim të pagës së mësuesve
-
Kryeministri Edi Rama, në rubrikën e radhës “Sy m’sy” ka përzgjedhur një
prej komenteve në lidhje me mungesën e fëmijëve në shkolla. Rama tha në
përgjigj...
Hace 1 día
No hay comentarios:
Publicar un comentario