Savannah Guthrie is pregnant with her second child, the “Today Show” anchor announced on Tuesday morning. The baby is due in December, and will join Guthrie’s 21-month-old daughter, Vale.

Due to the pregnancy, Guthrie will no longer cover the 2016 Olympics in Rio as previously announced, due to the prevalence of the Zika virus outbreak in Brazil, which can cause severe birth defects. Guthrie would’ve joined Matt Lauer and Meredith Vieira as anchors of NBC’s coverage of the opening ceremony in Rio de Janeiro on August 5.

“The doctors say that we shouldn’t because of the Zika virus, so I’ll miss it,” Guthrie told her “Today” colleagues, joking to Lauer: “You’re going to have to go to female beach volleyball without me, Matt. Try to carry on.”

Guthrie also penned a blog post about her second pregnancy on the “Today” website, writing, “It’s hard for words to contain all the excitement Mike and I have about expecting a new baby in December. When Vale was born, our happiness was complete. The thought of getting to add to our family now is beyond every hope, dream and prayer I have ever had. It is not simply double the joy — it is joy multiplied infinitely.”