2026–27 Respiratory Season Resources

Genomic surveillance of RSV in 2025/26, describes two predominant lineages: RSV-A lineage A.D.3 and RSV-B lineage B.D.E.1.

Early season genomic surveillance of influenza in 2025-26 describes subclades of H1N1pdm09 and H3N2 circulating in Ontario.

Median staff influenza immunization coverage from the 2007-08 to the 2024-25 respiratory surveillance season are reported as of January 1 to 31, 2025.

Summary of the available literature on the timing of antiviral susceptibility testing during influenza outbreaks, aiming to inform public health strategies and improve outbreak response in congregate settings.

Comprehensive instructions for specimen collection, special requirements, specimen handling, testing methods and turnaround times.

This document provides best practice infection prevention and control guidance for preventing and managing acute respiration infections in all health care settings.

This document outlines key considerations for PHUs in supporting the facilities to prepare for and respond to respiratory virus outbreaks and the mix of viruses that may circulate during respiratory virus season.

Tool to help administrators and staff members in a range of congregate living settings plan for, prevent and manage communicable diseases/infectious disease outbreaks.

Find guidance on how to define outbreak and non-outbreak areas. Learn strategies for cohorting residents in various situations and how and when to use masks and Personal Protective Equipment (PPE).

Visual representation of different cohorting scenarios.

A series of PPE auditing resources to assist health care settings establish, improve and maintain a PPE auditing and feedback program to support infection prevention and control best practices.

Part of the Sentinel Practitioner Surveillance Network, this program monitors influenza vaccine effectiveness annually.