assume not all are being reported. if just 100 were infected and continued to walk around in a densely populated city... it'd take NO TIME to get to 30,000
only reason it hasn't happened yet was... it hasn't hit a densely populated city... yet
it bounced off lagos, but they *think* they have it contained. the next 7-10 days will tell which way it goes.
btw, these graphs should make you very nervous (data source: http://en.wikipedia.org/wiki/2014_West_Africa_Ebola_outbreak#Timeline_of_the_outbreak)
