ROME — It started with the national anthem. Then came the piano chords, trumpet blasts, violin serenades and even the clanging of pots and pans — all of it spilling from people’s homes, out of windows and from balconies, and rippling across rooftops.

Finally, on Saturday afternoon, a nationwide round of applause broke out for the doctors on the medical front lines fighting the spread of Europe’s worst coronavirus outbreak.

“It was from our hearts, to say thanks and show that we can get past this,” said Emma Santachiara, 73, who came out onto the terrace of her apartment in the Monteverde section of Rome to clap with her granddaughters.