An operational tool to extrapolate influenza-associated SARI incidence rates from sentinel sites to provincial and national levels

Overview

The document “An operational tool to extrapolate influenza-associated SARI incidence rates from sentinel sites to provincial and national levels” serves as a supplement to the WHO publication “A manual for estimating disease burden associated with seasonal influenza”. It provides public health officials and researchers with an approach for extrapolating the influenza-associated severe acute respiratory infections (SARI) incidence rates from sentinel site-level to provincial- and national-level estimates. Developed as an extension of the WHO manual, this operational tool cites, where appropriate, relevant section numbers from the WHO manual.