Can modern science now prove that our Intelligent Designer named the God of Abraham was referring to mold and mildew when He used the word ?

The Hebrew word סרעה refers to uncleanness generally, of all sorts of kinds, for instance menstruation and after a seminal emission. It includes mould and mildew but also a host of other things.

Science deals with reality, not fantasy.  It proved no god can exist, without ever even considering a god.  Religion and science are polar opposites, One deals exclusively with reality, the other exclusively pretending reality is not The two can never reconcile.

Modern science doesn't care about an Intelligent Designer.

However, maybe linguistic could trace the evolutions and transliterations of the words for mold and plague in ancient biblical languages.

Personally, I can't.

God is in heaven...Jesus Christ

Is your home in heaven?