The Centre for European Research in Maastricht (CERiM) hosts Germs, Bioterrorism and Chemical Attacks: Internal and External EU Security Perspectives Nov. 21-22, 2016. the submission deadline was June 24, 2016, but the call for papers is posted for your information: Germs Bioterrorism etc Call for Papers.
Update (July 12): The call for papers deadline has been extended to July 13.