Every living organism evolves and mutations are to be expected....these viruses are a prime example. But you cannot educate those who refuse to learn.
The deadly plagues in Egypt....science explains the whole progression from red tide down to the firstborn sons being the first to traditionally consume the topmost tainted level of grain in the barrels. But people had no understanding of earth events so attributed them to miracles from their gods...whether those of the Hebrews, Egyptians, whatever.