Very little information is available on the national burden of influenza among healthcare workers and its impact on hospitalized patients. The reports of healthcare-associated infections (HAIs) linked to influenza submitted to the French Institute for Public Health Surveillance between 2001 and 2010 were reanalyzed for this purpose. During this period, 129 episodes of influenza-related HAI were reported, representing 1% of all reports and fewer than 10 episodes per year, with the exception of 2005 and 2009. The majority of episodes were under control at the time of reporting. The control measures most frequently implemented were so-called "droplet" measures, whereas vaccination was rarely mentioned. Of the 99 reported outbreaks, nearly half involved healthcare workers, who were often the source of the outbreak. These conclusions are limited because the reporting of nosocomial infections is a generic, non-exhaustive alert system, and the data collection is not designed for this type of analysis. Further studies would be useful to estimate the burden of influenza among healthcare workers and its consequences for hospitalized patients. (R.A.)