MMWR June 8, 2018: Influenza Activity in the United States During the 2017 – 2018 Season
The United States 2017–18 influenza season (October 1, 2017–May 19, 2018) was a high severity season with high levels of outpatient clinic and emergency department visits for influenza-like illness (ILI), high influenza-related hospitalization rates, and elevated and geographically widespread influenza activity across the country for an extended period. Nationally, ILI activity began increasing in November, reaching an extended period of high activity during January–February, and remaining elevated through March. Influenza A(H3N2) viruses predominated through February and were predominant overall for the season; influenza B viruses predominated from March onward. This report summarizes U.S. influenza activity* during October 1, 2017–May 19, 2018. Read More.
Seasonal Influenza Vaccination Resources for Health Professionals (CDC): HERE
Routine annual influenza vaccination is recommended for all persons over 6 months who do not have contraindications.
For the 2017-2018 season:
– A/Michigan/45/2015 (H1N1)pdm09-like virus
– A/Hong Kong/4801/2014 (H3N2)-like virus
– B/Brisbane/60/2008-like virus (Victoria lineage)
Quadrivalent vaccines will contain these three viruses and an additional B/Phuket/3073/2013-like virus (Yamagata lineage)
- Pregnant women may receive any licensed, recommended, age-appropriate vaccine
- FluMist Quadrivalent (LAIV4) should NOT be used during the 2017-2018 season, due to concerns about effectiveness.