How does Advance Team prevent outbreaks, and when must I use it?

Question

Accepted Answer

It ignores the first outbreak (and so also that outbreak's chain reaction) until the holder's next turn, then is discarded. Once in play it must be used on the first outbreak; you can't save it for a worse one. Where several cubes would cause the outbreak, bring the city up to 3 cubes. Play it before the card that would cause the outbreak is drawn; once drawn you must finish resolving it first.

Pandemic

How does Advance Team prevent outbreaks, and when must I use it?