During the 2013–14 season A(H1N1)pdm09, A(H3N2) and B/Victoria- and B/Yamagata-lineage influenza viruses have continued to cocirculate in ECDC-affiliated countries.
This report which is part of the RAGIDA project (Risk Assessment Guidance for Infectious Diseases transmitted on Aircraft) provides viable options for decision-makers when faced with the choice of whether to contact trace air travellers and crew that were potentially exposed to infectious diseases during a flight.
During the 2013–14 season A(H1N1)pdm09, A(H3N2) and B/Victoria- and B/Yamagata-lineage influenza viruses have been detected in ECDC-affiliated countries.
This issue of the ECDC Communicable Disease Threats Report (CDTR) covers the period 13-19 April 2014, and includes updates on chikungunya, dengue, Ebola virus, hepatitis A, influenza, seasonal influenza, MERS, polio and Zika virus.
The authors used a test-negative case control design to estimate the 2013/14 influenza vaccine effectiveness (VE) in patients seen with influenza-like illness as outpatients in Spain during December 2013-January 2014.