Methods: Descriptive study of CCU and special care patients with hospital acquired influenza during 2014-2017. HAI due to influenza was defined as: symptoms onset and/or positive influenza PCR ≥ 48 hours after hospital admission, without previous respiratory symptoms or with negative PCR.
Results: 22 patients with median age of 74 years old were identified, only 3 pediatric cases. The average time of acquired influenza was at thirteenth day of hospitalization. In 77% Influenza A was the only agent detected and 27% had respiratory co-infection. Thirteen (59%) were previously hospitalized in CCU, but only 2 (15%) due to respiratory problems. Nineteen patients (86%) presented comorbidity such as arterial hypertension (59%), chronic kidney disease (18%) and immunosuppression (18%). Half of them had a decompensation, mainly respiratory, associated to influenza infection. The observed lethality was 18%. Among all the influenza HAI, 59% occurred in unvaccinated patients, although 46% of them met criteria for vaccination recommendation.
Conclusion: HAI due to influenza occurred in chronic, older and unvaccinated patients. Education about HAIs and continuing high vaccination coverage must be a priority.
N. Le Corre, None
R. Medina, None
M. Ferres, None