Quadrivalent Influenza Vaccine 2023/24
Quadrivalent Influenza Vaccine 2023/24

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The number of influenza cases is likely to increase each year during its peak season. With the relaxation of social distancing measures and entry quarantine policies in various countries, the risk of influenza transmission may also increase as people and tourists no longer mandatory to wear masks in Hong Kong. In Hong Kong, local seasonal influenza activity has been low for the past three years due to past pandemic measures. The general population may be less immune to influenza than before. Given that severe cases do occur in previously healthy persons, all members of the public aged 6 months or above, except those with known contraindications, should receive seasonal influenza vaccination for personal protection. Members of the public can consult their family doctors to receive seasonal influenza vaccination for personal protection.

The circulating seasonal influenza strains may change from time to time, the seasonal influenza vaccine composition is updated every year by the circulating strains to enhance protection. According to the World Health Organization, when the vaccine strains closely match the circulating influenza viruses, the efficacy of inactivated influenza vaccine (IIV) in individuals younger than 65 years of age typically range from 70% to 90%. Therefore, it is necessary to get vaccinated against influenza every year.

Inactivated Influenza Vaccine (abbreviated: IIV) injection contain the following strains:

  • A/Victoria/4897/2022 (H1N1)pdm09-like virus
  • A/Darwin/9/2021 (H3N2)-like virus
  • B/Austria/1359417/2021 (B/Victoria lineage)-like virus
  • B/Phuket/3073/2013 (B/Yamagata lineage)-like virus

Product Details:

Intramuscular injection of inactivated influenza vaccine
Individuals 9 years old or above: Single dose
Individuals 6 months - 8 years old: 1 or 2 doses are required and recommended to have at least 4 weeks apart between the vaccinations.

Guidelines for Children Having Influenza Vaccine

An International Guideline has been given that children aged under 9 years and who have NOT received any influenza vaccination previously, are recommended to have at least 4 weeks apart between the vaccinations. Children who reach the age of 9 years require 1 shot of influenza vaccine only.

24 Designated Quality HealthCare Flu Vaccination Centres:

Click here for more details.


If you have any of the following conditions, you are recommended to seek advice before receiving vaccination.

  • Suffer from any acute, chronic or severe illness or any illness (with or without fever) e.g. upper respiratory tract infection, common cold
  • Allergic to any vaccine components, including egg white, chicken protein, gentamicin sulphate, neomycin, formaldehyde (preservative), haemagglutinin, etc.
  • Allergy or serious reaction to drug or vaccine in the past
  • Blood disorder e.g. thrombocytopenia, coagulation disorder
  • Immunocompromised

Download Quality HealthCare Mobile App to make a booking flu for vaccination services!

Recommended for

Individuals aged 6 months or above (age as at the date of vaccination)
Terms & Conditions
  1. Customers are required to make a booking for flu vaccination services through the Quality HealthCare mobile app.
  2. Customers must present their identity card, order confirmation letter (printed or e-version) and completed consent form to the designated clinic for verification before vaccination.
  3. Customers are required to take the vaccination during the vaccination period (1 September 2023 – 29 February 2024).
  4. The product is not applicable to Vaccination Subsidy Scheme.
  5. The product is applicable to individuals aged 6 months or above (age as at the date of vaccination).
  6. Individuals aged below 18 (age as at the date of vaccination) MUST be accompanied by their parent(s)/guardian(s), who will sign on the consent form on behalf of the enrolees in the clinic.
  7. No amendment to the vaccination service ordered is allowed once payment is confirmed. Any fees paid will not be transferable and will not be refundable.
  8. In case of disputes, the decision of Quality HealthCare Medical Services Limited shall be final.
  9. For any enquiries, please call the hotline during our business hours at 8301 8301.

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Terms & Conditions:

  1. Corporate Client Privilege Code is for QHMS corporate clients only.
  2. Corporate client privilege cannot be used in conjunction with other privileges and cannot be exchanged for cash or other products, resold or used for commercial purposes.
  3. In case of dispute, the decision of Quality HealthCare Medical Services Limited shall be final.