Four red COVID-19 particles are against a background of blue concentric circles.
Illustration: PGN

Leer en español

What you need to know

  • COVID-19 wastewater levels are currently low, but a recent group of variants called FLiRT is making headlines.
  • KP.2 is one of several FLiRT variants, and early lab tests suggest that it’s more infectious than JN.1.
  • Getting infected with any COVID-19 variant can cause severe illness, heart problems, and death.

KP.2, a new COVID-19 variant, is now dominant in the United States. Lab tests suggest that it may be more infectious than JN.1, the variant that was dominant earlier this year.

Fortunately, there’s good news: Current wastewater data shows that COVID-19 infection rates are low. Still, experts are closely watching KP.2 to see if it will lead to an uptick in infections.

Read on to learn more about KP.2 and how to stay informed about COVID-19 cases in your area.


Where can I find data on COVID-19 cases in my area?

Hospitals are no longer required to report COVID-19 hospital admissions or hospital capacity to the Department of Health and Human Services. However, wastewater-based epidemiology (WBE) estimates the number of COVID-19 infections in a community based on the amount of COVID-19 viral particles detected in local wastewater.

View this map of wastewater data from the CDC to visualize COVID-19 infection rates throughout the U.S., or look up COVID-19 wastewater trends in your state.

What do we know so far about the new variant?

Early lab tests suggest that KP.2—one of a group of emerging variants called FLiRT—is similar to the previously dominant variant, JN.1, but it may be more infectious. If you had JN.1, you may still get reinfected with KP.2, especially if it’s been several months or longer since your last COVID-19 infection.

A CDC spokesperson said they have no reason to believe that KP.2 causes more severe illness than other variants. Experts are closely watching KP.2 to see if it will lead to an uptick in COVID-19 cases.

How can I protect myself from COVID-19 variants?

Staying up to date on COVID-19 vaccines reduces your risk of severe illness, long COVID, heart problems, and death. The CDC recommends that people 65 and older and immunocompromised people receive an additional dose of the updated COVID-19 vaccine this spring.

Wearing a high-quality, well-fitting mask reduces your risk of contracting COVID-19 and spreading it to others. At indoor gatherings, improving ventilation by opening doors and windows, using high-efficiency particulate air (HEPA) filters, and building your own Corsi-Rosenthal box can also reduce the spread of COVID-19.

This article is supported by the Centers for Disease Control and Prevention of the U.S. Department of Health and Human Services (HHS) as part of a financial assistance award to the CDC Foundation totaling $69,392,486 with 100 percent funded by CDC/HHS. The contents are those of the author(s) and do not necessarily represent the official views of, nor an endorsement, by CDC/HHS, or the U.S. Government. In addition, the CDC Foundation does not guarantee and is not responsible for the accuracy or reliability of information or content contained in this article. Moreover, the CDC Foundation expressly disclaims all liability for damages of any kind arising out of use, reference to, or reliance on any information contained within this article. This article are not intended as, and should not be interpreted by you as, constituting or implying the CDC Foundation’s endorsement, sponsorship, or recommendation of the information, products, or services found therein.