De or het polio-epidemie?

The correct Dutch article is:

de polio-epidemie

How to use polio-epidemie

the polio-epidemiede polio-epidemie
this polio-epidemiedeze polio-epidemie
that polio-epidemiedie polio-epidemie
our polio-epidemieonze polio-epidemie
your polio-epidemiejouw polio-epidemie
every polio-epidemieelke polio-epidemie
which polio-epidemie?welke polio-epidemie?
a big polio-epidemie / the big polio-epidemieeen grote polio-epidemie, de grote polio-epidemie