Streptokokkeninfekti was a German Unterganger. First spotted by notoriousrob01, who made his parodies recipients of his Downfall Parody Awards, he was largely known for his extensive use of Downfall's Behind the scenes footage and actor interviews in his parodies.
He also uploaded these scenes on YouTube, and made them available for download.
His last parody was uploaded on February 2013, after which he fell into hiatus. It is implied that he has silently retired.