【Available Now】Quadrivalent Influenza Vaccine 2023/24


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【Available Now】Quadrivalent Influenza Vaccine 2023/24

Recommended: Available for aged 6 months or above
The quadrivalent influenza vaccines for the 2023-2024 season contain: an A/Victoria/4897/2022 (H1N1) pdm09-like virus
an A /Darwin/9/2021 (H3N2)-like virus
an B/Austria/1359417/2021 (B/Victoria lineage)-like virus
an B/Phuket/3073/2013 (B/Yamagata lineage)-like virus
Manufacturer: Abbott
Guidelines: Age of 9 years or above: 1 shot
Aged under 9 years:
– received any influenza vaccination previously:1 shot
– NOT received any influenza vaccination previously:2 shots (at least 4 weeks apart between the vaccinations)


Clinical features:

For healthy individuals, seasonal influenza is usually self-limiting with recovery in 2 – 7 days. Symptoms may include fever, cough, sore throat, runny nose, muscle pain, fatigue and headache; some may also have vomiting and diarrhoea.

Cough is often severe and prolonged but fever and other symptoms generally resolve in 5 – 7 days. However, influenza can be a serious illness to the weak and frail or elderly people, and may be complicated by bronchitis, chest infection or even death.


Mode of transmission:

Influenza viruses mainly spread through droplets when infected people cough, sneeze or talk. The infection may also spread by direct contact with the secretions of infected persons.


Incubation period:

Usually around 1 – 4 days.


Infectious period:

Infected persons may pass the viruses to other people 1 day before and up to 5 – 7 days after they develop symptoms. The period may be even longer in young children or severely immunocompromised persons.



Instructions for use

  • Must be used on or before the expiration date
  • Please show your confirmation information, order number, registered full name and phone number for verification


Terms and Conditions:

  • This voucher is only valid for Trinity Medical Centre.
  • This voucher can be used at Central, Causeway Bay or Tsim Sha Tsui Trinity Medical Centre.
  • The vaccine must be given within 30 days after purchase of this voucher.
  • This voucher is non-refundable and cannot be redeemed for full or partial cash.
  • You must bring this ticket to the front desk when you register.
  • This voucher cannot be used with any other special offers and promotions.
  • This voucher is not valid after expiration (except for COVID-19 policy).
  • If this voucher is lost or stolen, we will not accept any liability and will not provide any reissue in such case.
  • If you have any questions, please call 2192 7022 or email
  • Trinity Medical Centre reserves the right to amend the above Terms and Conditions without prior notice. In case of any disputes, Trinity Medical Centre reserves all rights for final decision


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