If I'm right about the way the deck is set up, then the first epidemic is in the first 10 cards, the 2nd is in the 2nd 10 and so on. All the cities with 2 cubes can't outbreak until the second epidemic card is drawn, which will be no earlier than the end of SFS's 2nd turn, and by then we'll have the blue cure, so if nothing else, SFS can remove all the cubes in Toronto and Chicago before that happens, with a spare action to pass a card if necessary (at this stage probably Sydney to me).
Jo'burg, on the other hand, has a fairly good chance of outbreaking before shraeye's second turn. It's true that an outbreak there will be much more manageable than one in the Americas, unless of course we're unlucky enough to pull Kinshasa or Khartoum from the bottom of the infection deck, putting 3 cubes there and leaving the card near the top of the infection deck, leaving one double outbreak almost certain, and another triple outbreak fairly likely as well. Of course, worst case shraeye can come along and remove all the cubes from both the outbroken cities in his next turn, but we'd be a lot closer to losing via outbreaks.
So I think the question is: do we prioritise protecting Jo'burg and sent Schneau there, with the added advantage of being able to build there on his next turn, but delaying the blue cure by at least one round, and forcing us to hope that either I or SFS draws a blue card at the end of our next turn; or do we get the blue cure this turn as planned and hope we don't get screwed with Jo'burg?
Actually, there's a third option. SFS could drive to MC and fly to Jo'burg and remove one cube. This allows us to rescue Jo'burg which then can't possibly outbreak until the end of SFS's second turn, and get the blue cure as well, but of course it strands our Researcher on the other side of the world, hoping he draws something which will bring him back somewhere useful, or making him use Sydney to come home.
tl;dr
Choose 2:
1) get the blue cure on my second turn;
2) rescue Jo'burg from a likely outbreak, which will most likely be quite tame, but has a small probability of being disastrous;
3) have our Researcher in a useful location, ready to pass cards as required.