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Influenza H3 – US CDC Health AdvisoryApr012019

Dear Colleagues –   The US CDC‎ has issued an official health advisory through their health alert notice (HAN) related to the late-season increase in H3N2 that they are also experiencing, see: https://emergency.cdc.gov/han/han00419.asp    Note that vaccine effectiveness (VE) against H3N2 viruses is less than 40% on average, including among working age adults. We have highlighted… Read more »

Mutations create challenges for typing Influenza A virusesJan212016

From BCCDC: Today the Canadian Sentinel Practitioner Surveillance Network (SPSN) published a paper in Eurosurveillance, entitled “Mutations acquired during cell culture isolation may affect antigenic characterization of influenza A(H3N2) clade 3C.2a viruses”. The paper is available in full here (open access). We thought you would be interested in the findings, although like influenza itself, they… Read more »

New AMMI Antiviral Guidance for Influenza OutbreaksJan062016

In December 2015, the Association of Medical Microbiology and Infectious Disease Canada (AMMI) published an updated guidance document for the use of antivirals in the management of care facility influenza outbreaks for the 2015-16 season. Given the potential for low vaccine effectiveness of this season’s influenza vaccine, the AMMI guidance document states that, at the… Read more »

Emerging respiratory-borne viruses update from BCCDCNov062014

Below is an update from BCCDC on emerging respiratory-borne viruses (ERV), including details related to: Increase in MERS-CoV cases in September and October 2014 primarily in Saudi Arabia and linked to camel contact. Subsequent amplification through human-to-human spread within the nosocomial setting is reminiscent of SARS. Also in October, a travel-related MERS-CoV case has been… Read more »