system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Trek/The Stand] The Federation finds an alternate Earth in the middle of the Superflu, do they break the prime directive?

Let's say for all intents and purposes, that the Federation is capable of curing the plague, and recognizing it for what it is, a bioweapon which will kill nearly everyone. 

Do they step in? Do they let everyone die to preserve the Prime Directive?
gpt
Since the bio-weapon was created by the native inhabitants of the planet, then the PD still applies. 

This disaster was of their own making, and part of their natural development as a species.  If it causes them to go extinct, that sucks, but it was their own fault it happened.