Based on this, which might be about as good as it gets:

http://scienceblogs.com/corpuscallosum/2010/04/cryptococcus_gattii_outbreak_d.php

Good news: this is not a new disease, it typically occurs only in immune-compromised persons, there are reliable treatments.

The bad news: It is showing up in places it previously wasn't known, if not detected and treated soon enough it can be quite deadly.

Changing weather patterns, warming, possibly associated with global warming, might explain why it is showing up where it is and when it has but the reasons remain unclear.