A medical assistant demonstrating a COVID-19 test. Photo: Aaron Lavinsky/Star Tribune via Getty Images

Diagnostic testing for the coronavirus is threatened yet again, this time by a shortage of critical lab materials, Politico reports.

Why it matters: The testing capabilities in the U.S. are still grossly behind those of other countries. This latest problem could set us even further back, allowing the coronavirus to continue to spread undetected through communities.

The state of play: U.S. labs may not have enough of the supplies used to extract generic material from any virus in a patient's sample, which is a key part of the test.

  • Qiagen, a supplier of these "RNA extraction" kits, confirmed to Politico that the product is backordered.

What's next: CDC director Robert Redfield told Politico that he didn't know how the agency would deal with a shortage of the kits.

  • He added that he is hopeful "there will be mechanisms between multiple manufacturers to correct" it.

Go deeper: Lab for coronavirus test kits may have been contaminated

Go deeper

1 hour ago - World

China embraces hostage diplomacy

Illustration: Sarah Grillo/Axios

The Chinese government is threatening to detain foreign citizens unless their home governments do what Beijing demands. In some cases, China has already made good on those threats.

The big picture: This marks a potential evolution of China's "wolf warrior diplomacy" to outright rogue state behavior, putting it in the company of countries like North Korea and Iran, which have also engaged in hostage diplomacy.

Justice Department sues Google over alleged search monopoly

Illustration: Lazaro Gamio/Axios

The Justice Department and 11 states Tuesday filed an antitrust lawsuit against Google, accusing the company of using anticompetitive tactics to illegally monopolize the online search and search advertising markets.

Why it matters: The long-awaited suit is Washington's first major blow against the tech giants that many on both the right and left argue have grown too large and powerful. Still, this is just step one in what could be a lengthy and messy court battle.

Updated 3 hours ago - Politics & Policy

Coronavirus dashboard

Illustration: Aïda Amer/Axios

  1. Politics: Americans feel Trump's sickness makes him harder to trustFlorida breaks record for in-person early voting.
  2. Health: The next wave is gaining steam.
  3. Education: Schools haven't become hotspots.
  4. World: Ireland moving back into lockdown — Argentina becomes 5th country to report 1 million infections.