A recent study by the Cleveland Clinic has found that this year’s flu shot was not effective in preventing influenza among working-aged adults. The study, published on Medrxiv.org, analyzed data from the 2024-2025 respiratory viral season and discovered a surprising trend.
According to the findings, vaccinated adults were more likely to contract influenza than unvaccinated individuals. In fact, the vaccine’s effectiveness was as low as -26.9%, indicating that it actually increased the risk of developing the disease. This concerning result is alarming, given that flu vaccines are administered widely each year to prevent illness.
The study’s results suggest a possible explanation for the declining trend in flu vaccination rates over recent years. As vaccine effectiveness decreases, more people may become complacent about getting vaccinated, leading to a vicious cycle. The Cleveland Clinic’s findings highlight the need for further research and improvement in flu vaccine development to ensure public health protection.
Source: https://abc3340.com/news/nation-world/cleveland-clinic-study-find-this-seasons-flu-shot-to-have-negative-effectiveness