Even in sickness my niang had a sharp sense of humour, and a brilliant, contagious laugh.

Her contagious laugh reminded me of my niang's.

"She had a contagious laugh," Ms. Mark said.

In spite of his self-declared loneliness, he had the most contagious and constant laugh I had ever heard.

"I think it will be a big deal, but it could really be horrible," he said, with a powerful, contagious laugh.

It was the first time that she had laughed, and it was a very contagious laugh, and altogether delightful.

This time the pause was almost eloquent, then he gave a richly contagious laugh.

Charles Wallace, holding her hand tightly, was looking around, too, and suddenly he laughed, his own, sweet, contagious laugh.

The film also claims to have found the man with the world's most contagious laugh, Doug Collins.

His beautiful smile and contagious laugh will stay with me.