WHO released the recommended components of seasonal influenza vaccine in the northern hemisphere for 2023-2024!
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WHO released the recommended components of seasonal influenza vaccine in the northern hemisphere for 2023-2024!
Influenza is different from the common cold. It is caused by the latest influenza virus infection that mutates every year.
The symptoms are much more serious than the common cold. It will cause body aches, cough, runny nose, fever, etc., and may even directly lead to death. Vaccines have become a necessary means of preventing epidemic outbreaks.
The World Health Organization (WHO) predicts candidate influenza viruses in the northern and southern hemispheres every year, as a wind vane for vaccine production by vaccine companies.
On February 24, WHO officially released the recommended components of the 2023-2024 northern hemisphere seasonal influenza vaccine, so that countries and vaccine manufacturers can develop and produce influenza vaccines. Please note that there is an update for Type A strains!
Trivalent influenza vaccine strain components
Trivalent Chicken Embryo Vaccine
Virus of class A/Victoria/4897/2022 (H1N1)pdm09
Type A/Darwin/9/2021 (H3N2) virus
Class B/Austria/1359417/2021 virus (B/Victoria lineage)
Trivalent cell culture or recombinant protein vaccine
Class A/Wisconsin/67/2022 (H1N1)pdm09 virus
Type A/Darwin/6/2021 (H3N2) virus
Class B/Austria/1359417/2021 virus (B/Victoria lineage )
Quadrivalent influenza vaccine strain components
Quadrivalent chicken embryo culture vaccine
Virus of class A/Victoria/4897/2022 (H1N1)pdm09
Type A/Darwin/9/2021 (H3N2) virus
Class B/Austria/1359417/2021 virus (B/Victoria lineage)
Class B/Phuket/3073/2013 viruses (B/Yamagata lineage)
Quadrivalent cell culture or recombinant protein vaccine
Class A/Wisconsin/67/2022 (H1N1)pdm09 virus
Type A/Darwin/6/2021 (H3N2) virus
Class B/Austria/1359417/2021 virus (B/Victoria lineage )
Class B/Phuket/3073/2013 viruses (B/Yamagata lineage)
Reference:
https://www.who.int/publications/m/item/recommended-composition-of-influenza-virus-vaccines-for-use-in-the-2023-2024-northern-hemisphere-influenza-season
(source:internet, reference only)
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