How effective is temperature taking at borders or in general as a screening tool to identify people who may have COVID-19 and need to take appropriate action?

Temperature taking as a screening tool can be used for those at high risk for COVID-19 (in this case travellers passing through air, land and sea borders) and for the entire population (e.g., on entering schools, stores and workplaces). It can be used alongside other potential screening tools (e.g., a list of COVID-19-related symptoms) and operationalized in different ways (e.g., by randomly selecting individuals for temperature taking and by varying the frequency of and settings for temperature taking). We identified eight evidence documents that provide highly relevant evidence to answer the question of how effective temperature taking is at borders or in general as a screening tool to identify people who may have COVID-19 and need to take appropriate action. We also identified experiences related to the question from six countries and all Canadian provinces and territories.