The 1918 influenza pandemic: 100 years of questions answered and unanswered

See allHide authors and affiliations

Science Translational Medicine  24 Jul 2019:
Vol. 11, Issue 502, eaau5485
DOI: 10.1126/scitranslmed.aau5485


The 2018–2019 period marks the centennial of the “Spanish” influenza pandemic, which caused at least 50 million deaths worldwide. The unprecedented nature of the pandemic’s sudden appearance and high fatality rate serve as a stark reminder of the threat influenza poses. Unusual features of the 1918–1919 pandemic, including age-specific mortality and the high frequency of severe pneumonias, are still not fully understood. Sequencing and reconstruction of the 1918 virus has allowed scientists to answer many questions about its origin and pathogenicity, although many questions remain. This Review summarizes key findings and still-to-be answered questions about this deadliest of human events.

View Full Text

Stay Connected to Science Translational Medicine