Mental health surveillance after the terrorist attacks in Paris

www.thelancet.com Vol 387 May 28, 2016 2195 mental health services in aff ected areas. As suggested in other research, early emotional reactions are also predictive of long-term mental health needs, and therefore our approach could assist in the allocation of services over time as well. Moreover, in countries with limited formal surveillance infrastructure, the approach could potentially identify mass trauma and guide emergency care into those areas most affl icted.