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Kids at Sunkist Elementary School in Anaheim, Calif. wear masks and physically distance while in class. Photo: Paul Bersebach/Orange County Register via Getty Images

The Centers for Disease Control and Prevention updated its guidance for K-12 schools Saturday, noting that reopened schools should "require universal and correct use of masks and physical distancing."

Why it matters: The clarification comes after the CDC's announcement Thursday that fully vaccinated people no longer need to wear masks or physically distance indoors or outdoors.

Of note: On Friday, NIAID director Anthony Fauci said that children younger than 12 probably won't be vaccinated until the end of 2021, and will need to wear masks at school this fall.

Go deeper

May 16, 2021 - Health

Nurses union calls on CDC to revise new mask guidance

Members of the National Nurses United union on Wednesday place 400 pairs of shoes on Black Lives Matter Plaza, Washington, D.C., to honor the more than 400 registered nurses who have died from COVID-19 . Photo: Eric Baradat/AFP via Getty Images

The largest nurses union in the U.S. called on the CDC Saturday to reverse guidance issued this week that allows for people fully vaccinated against COVID-19 to go maskless while participating in indoor and outdoor activities.

Details: National Nurses United executive director Bonnie Castillo said in a statement the new guidance is "not based on science, does not protect public health, and threatens the lives of patients, nurses, and other frontline workers across the country."

Updated May 16, 2021 - Politics & Policy

"SNL" cold open takes aim at CDC mask guidance

"Saturday Night Live" regular Kate McKinnon as NIAID director Anthony Fauci in the "SNL" cold open. Photo: Will Heath/NBC

Kate McKinnon as NIAID director Anthony Fauci hosted a show within a show as the latest "Saturday Night Live" cold open parodied confusion over the CDC's new mask guidance.

The big picture: McKinnon's Fauci introduced sketches with "a few doctors who minored in theater" who acted out scenarios intended to demonstrate correct mask behavior.

2 mins ago - World

In shift from Netanyahu, Israel tries diplomacy with U.S. on Iran deal

Bennett (R) and Lapid. Photo: Emmanuel Dunand/POOL/AFP via Getty

Israel has been trying to influence the Biden administration's approach to the Iran nuclear deal in a series of high-level meetings with U.S. officials, Israeli officials tell me.

Why it matters: Under former Prime Minister Benjamin Netanyahu, Israel didn't engage with the Biden administration over the deal except to vehemently oppose it and stress that Israel wouldn't be constrained by it. Prime Minister Naftali Bennett and his new government also oppose the deal, but are trying to engage with the U.S. on the issue.