Sign up for our daily briefing

Make your busy days simpler with Axios AM/PM. Catch up on what's new and why it matters in just 5 minutes.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Catch up on the day's biggest business stories

Subscribe to Axios Closer for insights into the day’s business news and trends and why they matter

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Sign up for Axios Pro Rata

Dive into the world of dealmakers across VC, PE and M&A with Axios Pro Rata. Delivered daily to your inbox by Dan Primack and Kia Kokalitcheva.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Sports news worthy of your time

Binge on the stats and stories that drive the sports world with Axios Sports. Sign up for free.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Tech news worthy of your time

Get our smart take on technology from the Valley and D.C. with Axios Login. Sign up for free.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Get the inside stories

Get an insider's guide to the new White House with Axios Sneak Peek. Sign up for free.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Catch up on coronavirus stories and special reports, curated by Mike Allen everyday

Catch up on coronavirus stories and special reports, curated by Mike Allen everyday

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Denver news?

Get a daily digest of the most important stories affecting your hometown with Axios Denver

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Des Moines news?

Get a daily digest of the most important stories affecting your hometown with Axios Des Moines

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Twin Cities news?

Get a daily digest of the most important stories affecting your hometown with Axios Twin Cities

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Tampa Bay news?

Get a daily digest of the most important stories affecting your hometown with Axios Tampa Bay

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Charlotte news?

Get a daily digest of the most important stories affecting your hometown with Axios Charlotte

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Nashville news?

Get a daily digest of the most important stories affecting your hometown with the Axios Nashville newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Columbus news?

Get a daily digest of the most important stories affecting your hometown with the Axios Columbus newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Dallas news?

Get a daily digest of the most important stories affecting your hometown with the Axios Dallas newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Austin news?

Get a daily digest of the most important stories affecting your hometown with the Axios Austin newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Atlanta news?

Get a daily digest of the most important stories affecting your hometown with the Axios Atlanta newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Philadelphia news?

Get a daily digest of the most important stories affecting your hometown with the Axios Philadelphia newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Chicago news?

Get a daily digest of the most important stories affecting your hometown with the Axios Chicago newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Sign up for Axios NW Arkansas

Stay up-to-date on the most important and interesting stories affecting NW Arkansas, authored by local reporters

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Illustration: Annelise Capossela/Axios

Preliminary Israeli data shows that coronavirus booster shots quickly spike a person's protection against both severe disease and infection, suggesting that the additional shots could help blunt the virus' spread in the U.S. — although it's very unclear how much.

Why it matters: The Biden administration has said that the main rationale for its booster push is to stay ahead of any waning of the vaccines' effectiveness against severe disease. But slowing the spread of the Delta variant would be a welcome bonus.

Driving the news: A preprint study recently released by Israeli researchers found that, in the real world, adults who received a third Pfizer shot saw their risk of confirmed infection drop by 11.4-fold after 12 days or more, and their risk of severe disease drop by more than 10-fold.

  • Israel was the first nation in the world to offer booster shots to its population, beginning with older adults.
  • The study included more than a million people who were 60 or older, and the authors argue that it "demonstrates the effectiveness of a third vaccine dose in both reducing transmission and severe disease."
  • More data is needed to confirm the study's results, which have not yet been peer-reviewed, experts cautioned. One particular limitation of this study is that people who receive a booster may be more risk-averse to begin with.

What they're saying: “The main takeaway message from Israel is there’s a short-term positive effect of boosts on both infection and severe disease," said a senior Biden administration official, adding that the Israeli government recently briefed members of the president's coronavirus team on their data.

  • “I never thought of vaccines as short-term. This changes that paradigm. Again, the jury is out, but Israel is making that case," the official added.

Yes, but: Everyone getting a booster shot is, by definition, vaccinated. The U.S. doesn't have good data on how many cases are occurring among vaccinated Americans, but most cases appear to be among unvaccinated people.

  • Without knowing what contribution the vaccinated are currently making to the spread of the virus or the U.S. caseload, it's impossible to know how much each could be reduced by giving those people a booster shot.
  • Giving a first round of shots to the unvaccinated would be a much more effective way of limiting spread. But ineligible children make up a large chunk of this population, along with vaccine-resistant adults who, thus far, have been unpersuadable.

The bottom line: The U.S. may start offering booster shots to members of the general population in a few weeks. Data like this, despite its limitations, may be our best window — at least for now — into what the effect of the U.S. effort could be.

Go deeper

Oct 25, 2021 - World

U.S. releases updated vaccination, testing rules for foreign travelers

Photo: Patrick T. Fallon/AFP via Getty Images

Foreign travelers will be allowed entry to the U.S. beginning Nov. 8 if they can provide proof of full COVID-19 vaccination with a shot authorized by the World Health Organization and a negative test within three days of departure, the White House announced Monday.

Why it matters: The updated guidance, which exempts children under the age of 18 from the vaccine requirement, is intended to provide further clarity for airlines and foreign nationals who have been restricted from traveling to the U.S. since early 2020.

Oct 25, 2021 - Health

DeSantis touts bonuses for unvaccinated police who relocate to Florida

Florida Gov. Ron DeSantis speaks during a press conference Friday in Kissimmee, Fla. Photo: Paul Hennessy/SOPA Images/LightRocket via Getty Images

Gov. Ron DeSantis announced plans Sunday to "hopefully sign" legislation to provide a $5,000 bonus to police officers who relocate to Florida in order to avoid COVID-19 vaccine mandates.

Why it matters: The governor's pledge during an appearance on Fox News comes amid escalating tensions with the Biden administration over its upcoming vaccine requirement for federal workers.

16 hours ago - Health

New York City police union files lawsuit against vaccine mandate

Combination images of New York City Patrolman Benevolent Association President Patrick Lynch and New York City Mayor Bill de Blasio. Photo: Andrew Lichtenstein/Corbis via Getty Images/David Dee Delgado/Getty Images

New York City's biggest police union filed a lawsuit Monday against Mayor Bill de Blasio's COVID-19 vaccine requirement for all NYC public employees.

Why it matters: The mandate requires all city employees to have had at least one dose by this Friday. They must show proof of vaccination or they'll be placed on unpaid leave. The Police Benevolent Association of New York tweeted Monday that it's seeking a temporary restraining order to halt the mandate, pending the outcome of its lawsuit.