(NewsNation) — Hillary Clinton has tested positive for COVID-19, the former secretary of state announced Tuesday.

Clinton said she has “mild cold symptoms” but otherwise feels “fine.”

“I’m more grateful than ever for the protection vaccines can provide against serious illness. Please get vaccinated and boosted if you haven’t already!,” she tweeted.

Former President Bill Clinton has tested negative and feels OK but will quarantine at the family’s home, she said.