Addition: April 2007

Inclusion of Infection Control Guideline Recommendation on the Use of Respirators for Aerosol Generating Medical Procedures on Patients with Known or Suspected Influenza Caused by the Pandemic Strain.

Date of Latest Version: June 2006

Summary of Significant Changes:

• Updated to include recommendations (and related references) regarding ventilation standards for health care facilities, and information regarding the spatial separation of patients in different settings;
• Uses new Pandemic Phase terminology;
• Recommendations regarding monitoring vaccinated visitors for ILI have been clarified;
• Section on Public Health Measures has been deleted from Annex F as there is now a separate Annex on this topic.

Note: Section on the mode of transmission of influenza and required control measures will be updated. Further review of existing literature is ongoing, and a consensus conference of experts in influenza transmission and control and respiratory protection is planned to assist in resolution of these two controversial issues.