科學數據點反映疫苗有無效？｜唔同血清型風險大不同？｜加強劑反應先知道有冇免疫記憶？｜呼吸系統科曹忠豪醫生教你點樣揀肺炎球菌疫苗！ #傾醫啲

肺炎球菌原來有超過 100 種血清型，唔同血清型嘅危險程度可以差好遠：有啲容易引致重症、抗藥性高，有啲喺小朋友同長者身上特別常見。今集《傾醫啲》，呼吸系統科專科 曹忠豪醫生會話大家知要留意邊啲血清型，點睇疫苗效力嘅科學數據，盡量喺有限覆蓋之中保護最多，對付持續變化嘅肺炎球菌！ 00:00 Ai Ly介紹《傾醫啲》本集主題 00:39 疫苗價數其實係咩意思？ 01:05肺炎球菌的血清型是什麼？為什麼這麼重要呢？ 02:10科學家如何挑選覆蓋那些血清型 03:36肺炎球菌結合疫苗的發展歷程 04:49 為何有疫苗仍會出現肺炎球菌感染？ 05:44 肺炎球菌疫苗的價數越高越好？ Did you know pneumococcus has over 100 different serotypes — and that not all of them carry the same level of risk? Some serotypes are more likely to cause severe disease or antibiotic‑resistant infections, while others appear more frequently in young children and older adults. That’s why choosing a pneumococcal vaccine isn’t just about picking the one with the highest valency — it’s about understanding which serotypes matter most and how well a vaccine protects against them. In this episode of Let’s Talk Medicine, Respiratory Specialist Dr. Tso explains which serotypes deserve special attention and why. He also breaks down the scientific data behind vaccine effectiveness — helping you understand what immune markers like antibody levels and booster responses really tell us. With these insights, you’ll see how to achieve the most protection possible, even when no vaccine can cover all 100+ serotypes. If you want to better understand how pneumococcal vaccines work and how to stay protected against an ever‑changing bacterium, this episode is a must‑watch. Don’t miss it! 00:00 Ai Ly introduces the topic of this episode of Ask Doctor 00:39 What does vaccine valency actually mean? 01:05 What are pneumococcal serotypes, and why are they so important? 02:10 How do scientists decide which serotypes to include in a vaccine? 03:36 The development history of pneumococcal conjugate vaccines 04:49 Why do pneumococcal infections still occur even when vaccines exist? 05:44 Is a higher-valent pneumococcal vaccine always better? #Vaccines #VaccineMyths #Pneumonia #PfizerHK #AskDoctor #傾醫啲 #肺炎 #疫苗迷思 #兒童疫苗 --------------------------- Facebook:   / pfizerhk   Instagram: pfizerhongkong --------------------------- References: 1. HKCHP. Frequently asked questions on pneumococcal vaccination. Available at: https://www.chp.gov.hk/en/features/10... Accessed Mar 2026 2. Darkwah S et al (2025) Pneumococcal serotypes and their association with death risk in invasive pneumococcal disease: a systematic review and meta-analysis. Front. Med. 12:1566502. doi: 10.3389/fmed.2025.1566502 3. Savrasova L et al (2025) Streptococcus pneumoniae serotypes and factors associated with antimicrobial resistance in Invasive pneumococcal disease cases in Latvia, 2012–2022. Front. Public Health 13:1501821. doi: 10.3389/fpubh.2025.1501821 4. Matthias Imohl et al. Journal of Clinical Microbiology, Apr. 2010, p. 1291–1296 Vol. 48, No. 4 0095-1137/10/$12.00 doi:10.1128/JCM.01937-09 本頻道內容旨在提升大眾對疾病認知，並不擬取代任何形式的醫學建議、診斷及治療。如有任何有關醫藥資訊之查詢，請咨詢註冊醫生或其他合資格的專業醫護人員。 The content in this channel aims to increase public disease awareness, it is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition or medication. PP-UNP-HKG-0569 MAR 2026