http://saharareporters.com/2014/08/18/new-ebola-case-lagos-runaway-nurse-brought-back-enugu-discharged
Case of a false negative that later turned positive.
Hopefully this will be the only one.
http://www.greenwichtime.com/news/medical/article/Some-who-fled-Liberia-Ebola-clinic-re-hospitalized-5695176.php