Helix is filled with mysteries and "WTH?" moments galore. The good news is they were ALL answered by the end of Season 2 (well, okay, most of them). We kept track of them here; we posed the question, and as soon as it was answered, we updated the appropriate photo.
Here's one that happened within the first, like, 30 seconds of the first episode:
QUESTION: What kind of virus is this? Yellow is the new black, apparently.
ANSWER: The virus is the result of Michael's plant experimentation in the Abbey. The samples from the ship revealed it physically manifests as a fungus, and it's ingested rather than inhaled. As bees are involved in some capacity, it's an insect-born vector, though the bees themselves aren't carriers; their honey, on the other hand ... Anyway, it's gross as hell.