For more influenza and RSV training resources
please email: Immunize@fnha.ca
2018/19 Seasonal Influenza Vaccines
Trivalent and Quadrivalent Inactivated Influenza Vaccines (TIIV & QIIV), and Quadrivalent Live Antenuated Influenza Vaccines (LAIV-Q)
⦁ A/Michigan/45/2015 (H1N1)pdm09-like virus⦁ A/Singapore/INFIMH-16-0019/2016 (H3N2)-like virus⦁ B/Colorado/06/2017-like virus ⦁ B/Phuket/3073/2013-like virus (in quadrivalent vaccines only)
The BCCDC Influenza and Emerging Respiratory Pathogens team provided an end of season Summary: 2017-18 influenza season in their BC Influenza Surveillance Bulletin. The 2017-18 influenza season in BC was characterized by co-circulation of influenza A(H3N2) and B(Yamagata). Influenza activity remained at elevated levels for an extended period of time during the 2017-18 season compared to recent seasons. Additionally, influenza B activity began earlier and made greater contributions to the overall seasonal influenza epidemic, compared to recent seasons.
Elders over 65 years old comprised the majority of influenza cases detected during the 2017-18 season, related in part to the co-dominant A(H3N2) and B activity and high number of long-term care facility outbreaks. Younger age groups were also represented, notably among influenza A(H1N1)pdm09 detections.
The Canadian Sentinel Practitioner Network (SPSN) shared their interim estimates of 2017-2018 Influenza vaccine effectiveness. Low vaccine effectiveness of less than 20% against influenza A(H3N2), notably among working-age adults was identified in interim estimates. Higher interim estimates of vaccine effectiveness against influenza B at 55% was identified despite prominent TIV use, suggesting cross-lineage protection.
While influenza vaccines do not provide complete protection, overall they remain the best way of preventing influenza and an important control measure in conjunction with regular hand cleaning and respiratory hygiene. While scientists and researchers continue to search for a better influenza vaccine, influenza vaccination continues to be the best protection against contracting and spreading influenza virus for health care professionals and your clients.