Laborers and soldiers from China and Southeast Asia recruited during the First World War by Britain and France have been suggested as the
origin of the 1918 influenza pandemic in Western Europe. This study aimed to review the available data to better understand the sources and
origins of the 1918 influenza pandemic, and clarify whether, in fact, there was an Asian connection to its onset. We reviewed official mortality
lists from the Commonwealth War Graves Commission and the French Ministry of Defence for all-cause (Britain) and pneumonia/influenza
(France) mortality, respectively. The results indicated that influenza mortality (estimated 1/1000) in Chinese and Southeast Asian laborers and
soldiers lagged other co-located military units by several weeks. This finding does not support a Southeast Asian importation of lethal influenza
to Europe in 1918