As Mick mentions in his remark, "to deem healthy" is somewhat old-fashioned but not, I do think, enough that you should not learn the way to use the idiom. I would not call it "Victorian" English, as it's a phrase that sees common use even nowadays. The plural Edition is https://jaredkkwrj.blogocial.com/5-easy-facts-about-criminal-lawyer-in-dha-karachi-pakistan-described-72269717