Matched pairs

They glide in festive dance, for it is carnival,
Towards the gates of Warsaw
Plague with hunger, dirt with cholera,
For better entertainment.
And out of hospitality the Siren
Is inviting these couples
To ask cities for help with hygiene
And take them for bars.
Ha! what to do? This Siren
Is in a quarrel with hygiene,
No wonder she wants to show off
Luck as hospitality.
(Kogut, Warsaw, 1911) (translation wants improvement)