id author title date pages extension mime words sentences flesch summary cache txt cord-272690-r8lv1zzx St. John, Ronald K. Border Screening for SARS 2005-01-17 .txt text/plain 2643 139 51 With the rapid international spread of severe acute respiratory syndrome (SARS) from March through May 2003, Canada introduced various measures to screen airplane passengers at selected airports for symptoms and signs of SARS. Because of the continuing outbreak in Toronto, domestic spread in other affected countries in Southeast Asia, and international spread to other countries, Health Canada intensified its initial response by instituting both inbound and outbound passenger screening to identify persons with symptoms or signs compatible with SARS. In parallel to these measures, Health Canada initiated a pilot study on May 8, 2003 , on the use of infrared thermal scanning machines to detect temperatures >38°C in selected international arriving and departing passengers at Vancouver's International and Toronto's Pearson International airports. Careful analysis of the travel histories of suspected and probable SARS patients who traveled to Canada showed that persons became ill after arrival and would not have been detected by airport screening measures. ./cache/cord-272690-r8lv1zzx.txt ./txt/cord-272690-r8lv1zzx.txt