Bloomberg - Are you a robot?
https://www.bloomberg.com/news/articles/2022-01-11/repeat-booster-shots-risk-overloading-immune-system-ema-says
【財訊快報/劉敏夫】外電報導指出,歐盟監管機構提出警告表示,頻繁注射Covid-19加強針可能會對免疫系統產生不利影響,此法可能不可行。 歐洲藥品管理局(European Medicines Agency)表示,每四個月重複注射加強針最終可能會削弱免疫系統,並使人感到十分疲勞。相反的,該機構認為,各國應該根據流感疫苗戰略制定的藍圖,在加強免疫計畫之間留出更多時間,並將它們與每個半球寒冷季節的開始聯
Several countries have authorized second booster shots of COVID-19 vaccine, but concerns have recently been raised about whether this is a useful approach.
It’s too soon to understand the effectiveness of a fourth vaccine dose, according to the EU's top drug regulator. But some countries have already authorized the shot.
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