US President Donald Trump, who has avoided wearing a mask in public even as the coronavirus pandemic spread, donned one on Saturday at a military medical facility outside Washington where he was to meet with wounded soldiers and frontline healthcare workers, Reuters reported.

“I think when you are in a hospital, especially in that particular setting when you are talking to a lot of soldiers, people that in some cases just got off the operating table, I think it’s a great thing to wear a mask,” Trump told reporters at the White House just before his visit to Walter Reed National Military Medical Center.

At the medical facility, Trump walked by media gathered for a carefully staged photo opportunity wearing a navy blue mask emblazoned with a presidential seal embossed in gold. He said only “thank you” as he passed.

The visit to Walter Reed marked Trump’s first public appearance with a face covering since COVID-19 began.

Trump had previously refused to wear a mask in public or ask other Americans to do so, saying it was a personal choice, although he had said he would if he was in a crowd and could not maintain distance from others.