Effectiveness of the 2011-12 Influenza Vaccine: Data from US Military Dependents and US-Mexico Border Civilians

Objective:

To assess effectiveness of the influenza vaccine among US military dependents and US-Mexico Border populations during the 2011-12 influenza season.

Introduction:

As a result of antigenic drift of the influenza viruses, the composition of the influenza vaccine is updated yearly to match circulating strains. Consequently, there is need to assess the effectiveness of the influenza vaccine (VE) on a yearly basis. Ongoing febrile respiratory illness (FRI) surveillance captures data and specimens that are leveraged to estimate influenza VE on an annual basis.