PT - JOURNAL ARTICLE AU - Derek Gatherer TI - The unprecedented scale of the West African Ebola virus disease outbreak is due to environmental and sociological factors, not special attributes of the currently circulating strain of the virus AID - 10.1136/ebmed-2014-110127 DP - 2015 Feb 01 TA - Evidence Based Medicine PG - 28--28 VI - 20 IP - 1 4099 - http://ebm.bmj.com/content/20/1/28.short 4100 - http://ebm.bmj.com/content/20/1/28.full SO - Evid Based Med2015 Feb 01; 20