Barron Trump has tested positive for COVID-19 in a second round of testing, according to first lady Melania Trump.

Barron, 14, President Donald Trump’s youngest son, did not exhibit any symptoms, according to his mother. He has since tested negative again, Melania Trump said, according to reporter Jennifer Jacobs.

“It was two weeks ago when I received the diagnosis that so many Americans across our country and the world had already received—I tested positive for COVID-19,” the first lady said in a statement. “To make matters worse, my husband, and our nation’s Commander-in-Chief, received the same news.”

She continued: “Naturally my mind went immediately to our son. To our great relief he tested negative, but again, as so many parents have thought over the past several months, I couldn’t help but think “what about tomorrow or the next day?”

“My fear came true when he was tested again and it came up positive. Luckily he is a strong teenager and exhibited no symptoms. In one way I was glad the three of us went through this at the same time so we could take care of one another and spend time together. He has since tested negative.”

The first lady said she has now tested negative for the coronavirus.

The president, who was on his way to Iowa on Wednesday, said, “Barron’s fine.”

Trump was released from Walter Reed National Military Medical Center on Oct. 5 after being hospitalized for three days after contracting the coronavirus.