US President Donald Trump has worn a face mask in public for the first time, yielding to intense pressure to set a public health example as the coronavirus rampages across America.
Mr Trump put on a black mask before he walked through the corridors of Walter Reed military hospital outside Washington to meet with wounded veterans, according to television news footage.
The President walked past reporters and did not stop to speak to them about what had become a hotly anticipated moment - his possible change of heart on a practice recommended by the US government's own medical experts. "I think it's a great thing to wear a mask.