أخبار العالمالأخبار العالميةكورونا
جرعة واحدة لا تكفي لطفرات فيروس كورونا
وفقًا للبحث ، قد لا تؤدي جرعة واحدة من اللقاح إلى استجابة مناعية مرضية للحماية من سلالات جديدة غير تلك الموجودة بالفعل.
قاد البحث إمبريال كوليدج في لندن (إمبريال كوليدج) لفحص ردود فعل جهاز المناعة على العاملين في القطاع الصحي في بريطانيا ، بعد أن تلقوا الجرعة الأولى من لقاح فايزر .
بعد الجرعة الأولى ، كان جهاز المناعة أضعف لدى الأشخاص الذين لم يصابوا من قبل ، مما تركهم غير محميين من خطر الإصابة بالسلالات الطافرة للفيروس ، وفقًا للعلماء المسؤولين عن البحث اليوم.
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