Welcome to our Axios AM Deep Dive wrapping up theTokyo Olympics detailing what we learned, and looking ahead to next year's Winter Gamesthe impact of the COVID pandemic, led by Ina Fried, who's on the ground in Tokyo, and Kendall Baker, who's been covering the Games every day in his Axios Sports newsletter.
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Jul. 08, 2021 04:46PM EST
Study: Delta coronavirus variant evades certain antibodies because of mutations
One dose of the Pfizer or AstraZeneca coronavirus vaccine "barely" protects against the Delta variant of the virus, because of mutations the variant has developed, according to a new study published in the journal Nature Thursday.
Why it matters: The study found that two doses of those vaccines generated a neutralizing response to the variant in 95% of people, highlighting the importance of full vaccination against COVID-19.
- The findings may also offer an explanation for why the Delta variant is rapidly spreading in multiple countries around the world — including the U.S., where it is now the most dominant version of the virus.
How it works: The team of French researchers tested how efficiently antibodies produced through natural infections or vaccines neutralized variants of the coronavirus, including Delta, which was first identified in India.
- They discovered that the Delta variant has developed mutations to cell entry mechanisms that allow it to evade certain antibodies.
- While one dose of Pfizer's or AstraZeneca's vaccines was less effective at neutralizing the variant compared to two, it still performed better than the antibodies produced through natural infection, suggesting that people who contracted the virus may still need vaccine to help defend against variants.
Flashback:A study in The Lancet published in June found that the Delta variant is primarily a threat to people who have not been vaccinated.
- Unvaccinated people were twice as likely to be hospitalized if they were infected by the Delta variant compared to infections from the Alpha variant, which was first detected in the United Kingdom.
What they're saying: "In parts of the Midwest and upper mountain states, [the Centers for Disease Control and Prevention's] early sequence data suggests the Delta variant accounts for approximately 80% of cases," said CDC Director Rochelle Walensky during a briefing on Thursday.
- "To be clear, there will likely continue to be an increase in cases among unvaccinated Americans, and in communities with low vaccination rates, particularly given the spread of the more transmissible Delta variant," Jeffrey Zients, the White House coronavirus response coordinator, said.
Go deeper:Delta variant threatens masking guidance
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Jul. 31, 2021 04:29PM EST
Russians hacked federal prosecutors, Justice Department says
The Russian hackers behind the massive SolarWinds cyber-espionage campaign broke into the email accounts of some of the most prominent federal prosecutors' offices around the country last year, the Justice Department announced.
State of play: DOJsaid 80% of Microsoft email accounts used by employees in the four U.S. attorney offices in New York were breached.
- 27 U.S. attorney offices had at least one employee's email account compromised during the hacking campaign, from May to Dec. 2020.
Context: The SolarWinds campaign infiltrated dozens of private-sector companies and think tanks, as well as at least nine U.S. government agencies. The hack was discovered and publicized in mid-December.
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