The circadian rythm thing is so egregiously absurd that it's easy to overlook the other spectacular claim in that sentence. Some people could argue that viruses are alive, but that's far from the mainstream interpretation and to say that the statement is wading into some potentially really be controversial territory is an understatement.
> circadian adj. of, relating to, or showing rhythmic behaviour with a period of 24 hours; especially of a biological process
No, they don't.
And the rest of the paragraph is equally goofy.