Spanish Influenza and Song (1918)

A poem describing the situation at the time

I had a little bird,
And his name was Enza;
I opened the window,
And in flew Enza.

 At that time, a rope skipping song was popular among girls in the streets.

Reference

The Spanish Flu Pandemic of 1918

https://www.aprilsmith.org/lesson-1-another-creepy-kids-rhyme.html