Table of Contents

• Editorial

• What Can We Learn from Epidemiological Surveillance of Acute Bronchiolitis in Infants in the Ile-de-France Region, Seasons 2005–2006 through 2010–2011?

• Occurrence of unexplained mass illness episodes in a school in Essonne

• Clustered cases of overdose in the Île-de-France region—January 2009