Nothing confirmed by a test, but I swear I had it a few months before it was officially recognized and feel like it was already here. Was sick as hell but also had this very unusual lung problem for months afterwards. There are times my lungs still don't feel right; it's a difficult sensation to describe, but they feel "full" of fluid with no cough or anything. Overall, though, I came out unscathed. Also feel like I had it once or twice more based on symptoms, but again, nothing confirmed... but those times were way easier than the first. Purely subjective.