As Mick mentions in his comment, "to deem healthy" is a little bit outdated-fashioned but not, I believe, more than enough that you should not find out how to utilize the idiom. I wouldn't call it "Victorian" English, as it is a phrase that sees normal use even right now. https://howtotakecareofacatuae77531.free-blogz.com/83900500/the-ultimate-guide-to-how-to-take-care-of-a-cat-uae