I'm thinking about building a Health Blog. I want to create unique content too, but they did an outstanding job in the English language. It's much easier for me to rewrite it. Does Google see it as duplicate content?
No, Google does not view translated content as duplicate, as content in another language is different than if it appears in the same language twice. However, it recommended having a human translation as Google bots can tell if the site has been translated using Google Translate and may view it as 'spammy.'