Early oseltamivir treatment improves survival in critically ill patients with influenza pneumonia.

Background: The relationship between early oseltamivir treatment (within 48 h of symptom onset) and mortality in patients admitted to intensive care units (ICUs) with severe influenza is disputed. This study aimed to investigate the association between early oseltamivir treatment and ICU mortality in critically ill patients with influenza pneumonia.

Methods: This was an observational study of patients with influenza pneumonia admitted to 184 ICUs in Spain during 2009-2018.