From: entekhab.ir
Subject: محققان دانشگاه علوم پزشکی تهران: احتمال انتقال کرونا از طریق صحبت کردن با فرد ناقل وجود دارد / نصف مبتلایان کرونا، «ناقلِ بدون علامت» هستند
Date: Sat, 30 May 2026 19:27:28 +0330
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