Eurosurveillance
Volume 20, Issue 6, 12 February 2015
http://www.eurosurveillance.org/Public/Articles/Archives.aspx?PublicationId=11678

Surveillance and outbreak reports
Surveillance of infant pertussis in Sweden 1998–2012; severity of disease in relation to the national vaccination programme
by RM Carlsson, K von Segebaden, J Bergström , AM Kling, L Nilsson

Review articles
Timeliness of epidemiological outbreak investigations in peer-reviewed European publications, January 2003 to August 2013
by EC van de Venter, I Oliver, JM Stuart