Did Charles Dickens say “There is nothing in the world so irresistibly contagious as laughter and good humour”?

Did Charles Dickens say “There is nothing in the world so irresistibly contagious as laughter and good humour”?

Found word for word. Yes. The text appears in works attributed to Charles Dickens. Source and location below.

It is a fair, even-handed, noble adjustment of things, that while there is infection in disease and sorrow, there is nothing in the world so irresistibly contagious as laughter and good-humour. When Scrooge's nephew laughed in this way: holding his sides, rolling his head, and twisting his face into the most extravagant contortions: Scrooge's niece, by marriage, laughed as heartily as he. And their assembled friends being not a bit behindhand, roared out lustily.
A Christmas Carol in Prose; Being a Ghost Story of Christmas — Charles Dickens, STAVE III: THE SECOND OF THE THREE SPIRITS · ¶432 · Public domain (US), Project Gutenberg #46 · source

All checked quotes → · Method on GitHub