Did the Bidens put the Carters at risk by not wearing masks inside the Carters' home?

When President Joe Biden and first lady Jill Biden visited former President Jimmy Carter and former first lady Rosalynn Carter, the four posed for a photo and no one was wearing a mask. That triggered questions on social media.

But all four have been fully vaccinated against COVID-19.

Although the CDC generally recommends wearing face coverings for maximum protection against COVID-19, fully vaccinated individuals like the Carters and the Bidens were within CDC guidelines when the photo was taken.

The CDC's updated recommendations say fully vaccinated people from different households can interact with one another without wearing masks or social distancing while indoors.

Biden publicly broadcast himself receiving his first and second doses of the vaccine; Jill Biden also received both doses. Jimmy Carter, 96, and Rosalynn Carter, 93, have been fully vaccinated, even attending in-person church service.