Risk Factors for Severe Influenza A–Related Pneumonia in Adult Cohort, Mexico, 2013–14

Abstract

During the 2013–14 influenza season, we assessed characteristics of 102 adults with suspected influenza pneumonia in a hospital in Mexico; most were unvaccinated. More comorbidities and severity of illness were found than for patients admitted during the 2009–10 influenza pandemic. Vaccination policies should focus on risk factors.

Keywords

• Influenza
• A(H1N1)pdm09
• viruses
• vaccine
• pandemic
• pneumonia