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نتایج آزمایش واکسن فایزر در کودکان ۲ تا ۵ ساله ناامید کننده است

نتایج آزمایش واکسن فایزر در کودکان ۲ تا ۵ ساله ناامید کننده است

نتایج بدست آمده از آزمایش واکسن کروناویروس فایزر در کودکان دو تا پنج ساله ناامید کننده بوده است. به گزارش ایسنا، شرکت فایزر اعلام کرد: دو دُز واکسن کووید-۱۹ اطفال نتوانست واکنش ایمنی کافی را در کودکان دو تا پنج ساله ایجاد کند. نتایج بدست آمده از این بررسی نگرانی هایی را برای والدینی به

نتایج آزمایش واکسن فایزر در کودکان ۲ تا ۵ ساله ناامید کننده است

نتایج بدست آمده از آزمایش واکسن کروناویروس فایزر در کودکان دو تا پنج ساله ناامید کننده بوده است.

به گزارش ایسنا، شرکت فایزر اعلام کرد: دو دُز واکسن کووید-۱۹ اطفال نتوانست واکنش ایمنی کافی را در کودکان دو تا پنج ساله ایجاد کند.

نتایج بدست آمده از این بررسی نگرانی هایی را برای والدینی به همراه دارد که امیدوار بودند فرزندانشان در اسرع وقت در برابر کروناویروس جدید واکسینه شوند.

در آزمایش‌های مربوط به واکسن کودکان، سه میکروگرم دُز واکسن مورد استفاده قرار گرفت که معادل حدود یک دهم دُز مورد استفاده در واکسن‌های بزرگسالان است. در حالیکه دو دُز سه میکروگرمی واکنش ایمنی خوبی در نوزادان و کودکان شش ماه تا دو سال ایجاد کرد – مشابه آنچه در افراد ۱۶ تا ۲۵ ساله دیده می شود – در گروه سنی دو تا پنج سال نتوانست اثربخشی مشابهی داشته باشد.

شرکت فایزر اعلام کرده است که دُز سوم آزمایش خواهد شد تا مشخص شود آیا واکنش ایمنی قوی‌تری ایجاد می‌شود یا خیر، اما هیچ برنامه‌ای برای آزمایش هر مقدار واکسن بالاتر از سه میکروگرم ترتیب داده نشده است. کودکان کمتر از پنج سال دُز سوم را دو ماه پس از دریافت دُز دوم دریافت خواهند کرد.

به گزارش ایسنا به نقل از هلث دی نیوز، مدیران شرکت فایزر می گویند: هدف، شناخت پتانسیل مصونیت سازی دُز سوم است و در حال حاضر در حال مطالعه سه میکروگرم هستیم.

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