Variation in the completeness of reporting between EWARS and EWARN from week 43, 2014 through week 44, 2015. Variation in the completeness of reporting between EWARS and EWARN from week 43, 2014 through week 44, 2015. EWARN, Early Warning and Response Network; EWARS, Early Warning and Response System. Annie Sparrow et al. BMJ Glob Health 2016;1:e000029 Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/