Experts Urge Elderly to Get Flu Shots Early as High-Risk Groups Face Severe Complications
HK01 · 4 SOURCES1 day ago2 MIN

Summary
Hong Kong is currently experiencing peak flu season, and medical experts are urging elderly residents, particularly those with chronic conditions, to get vaccinated promptly. Professor Hung Fan-ngai from the HKU Clinical Medicine School warns that high-risk groups including those with cardiovascular disease, diabetes, or cancer face the possibility of rapid deterioration once infected with influenza. Research indicates that cardiovascular patients face a 6 to 17 times higher risk of acute heart attack within one week of flu diagnosis. As of October 7, Hong Kong has recorded 770 severe flu cases, with elderly residents aged 65 and above accounting for over 80 percent of cases.
Key Points
- Hong Kong recorded 770 severe flu cases as of October 7, with 629 cases (over 80%) involving elderly patients aged 65 and above
- Cardiovascular patients face a 6 to 17 times higher risk of acute heart attack and an 8 to 10 times higher stroke risk within one week of flu diagnosis
- Diabetes patients face a 6 times higher death risk from flu complications, while cancer patients face 3 to 5 times higher hospitalization risk and up to 10 times higher post-hospitalization death risk
- Hong Kong offers three types of trivalent flu vaccines: injection inactivated, nasal live attenuated, and injection recombinant, with recombinant vaccines producing 3 times higher antigen levels
- Enhanced flu vaccines for elderly can increase neutralizing antibody levels by 3 to 4.7 times, providing better protection against H3N2 influenza
Why It Matters
Hong Kong has an aging population, with a significant proportion of elderly residents managing chronic conditions that make them vulnerable to severe flu complications. The high concentration of severe cases among seniors highlights the urgent need for improved vaccination rates in this demographic. Early vaccination not only protects individual elderly residents but also reduces the burden on Hong Kong's already strained public healthcare system during peak flu season .
Hong Kong has an aging population, with a significant proportion of elderly residents managing chronic conditions that make them vulnerable to severe flu complications. The high concentration of severe cases among seniors highlights the urgent need for improved vaccination rates in this demographic. Early vaccination not only protects individual elderly residents but also reduces the burden on Hong Kong's already strained public healthcare system during peak flu season .