By Sandra Rose  | 

Drew Angerer/Getty Images

White House press secretary Jen Psaki has tested positive again for the coronavirus. Psaki, who is fully vaccinated and boosted, said she will miss the Presidents's trip to Europe this week.

Joe Biden tested negative for COVID on Tuesday, and is leaving Wednesday for NATO meetings in Brussels followed by a trip to Poland, according to DailyMail.com.

Psaki, 43, took the test Tuesday morning. She previously had a breakthrough Covid-19 case in October 2021.

The announcement came moments before she was scheduled to host her daily press briefing at the White House on Tuesday.

"Today, in preparation for travel to Europe, I took a PCR test this morning. That test came back positive, which means I will be adhering to CDC guidance and no longer be traveling on the President's trip to Europe," she tweeted.

Psaki thanked the mRNA vaccines for her mild symptoms.

"Thanks to the vaccine, I have only experienced mild symptoms. In alignment with White House COVID-19 protocols, I will work from home and plan to return to work in person at the conclusion of a five-day isolation period and a negative test," she wrote.

White House staff no longer wear face masks in accordance with Centers for Disease Control and Prevention guidelines.