New Flu Strains for 2019-2020 have been Identified
The World Health Organization has announced the upcoming strains of influenza for the 2019-2020 flu season and has made vaccination composition recommendations accordingly.
The Centers for Disease Control and Prevention have reported that the 2018-2019 influenza vaccination had a 47% efficacy rate, making it one of the most effective vaccinations against the flu to date. The vaccine for the upcoming flu season has been updated to better match circulating viruses.
Influenza A viruses were predominant in most countries and accounted for 95% of all influenza viruses detected. Globally, co-circulation of both A(H1N1) and A(H3N2) viruses was evident in all countries and territories, as per the WHO. Two B components were also detected.
The WHO has recommended that the egg-based, quadrivalent vaccines for use in the 2019-2020 northern hemisphere influenza season contain the following:
- Egg based quadrivalent vaccines for use in the 2019-2020 northern hemisphere influenza season contain the following:
- an A/Brisbane/02/2018 (H1N1)pdm09-like virus;
- an A/Kansas/14/2017 (H3N2)-like virus; *
- a B/Colorado/06/2017-like virus (B/Victoria/2/87 lineage); and
- a B/Phuket/3073/2013-like virus (B/Yamagata/16/88 lineage).
- It is recommended that the influenza B virus component of trivalent vaccines for use in the 2019-2020 northern hemisphere influenza season be a B/Colorado/06/2017-like virus of the B/Victoria/2/87-lineage.
According to the CDC, once the viruses are selected for the new vaccine formulation, manufacturers of the vaccine operate quickly to produce, test, release and distribute the flu vaccine. The CDC, together with other federal partners, monitor this production process and then vaccine availability timelines.
Contact Midland Health today for your free quote and to book your on-site flu clinics for next season!