In retrospect it became apparent that the followup of contacts was not as comprehensive as it should have been. Patients who had been discharged from the ‘probable’ section of the Ebola ward as non-cases as well as staff working on the Ebola ward were not followed up systematically. In future outbreaks, the possibility of nosocomial and occupational transmission on the Ebola ward should be taken into account when establishing lists of contacts for followup.