برای پاسخ دادن به این سوال که آیا اساسا زدن ماسک کمکی به جلوگیری از انتقال ویروس خواهد کرد یا خیر ابتدا باید با نحوه سرایت بیماری آشنا شد. تحقیقات بسیاری بر روی نحوه انتقال ویروس از طریق دستگاه تنفس و از راه هوا در چین، امریکا و بسیاری از کشور های جهان به انجام رسیده است که اکثر آنها به طور قاطع بر روی نحوه انتقال ویروس کرونا از طریق قطرات تنفسی یا به اصطلاح ها تاکید کرده اند.
droplet ها در واقع ریزقطراتی هستند که به هنگام سرفه یا عطسه از دستگاه تنفس ما به اطراف پرتاب می‌شوند. ویروس کرونا پس از ورود به بدن یک فرد از طریق بینی و مجاری تنفسی به ریه ها رفته و در این قسمت شروع به تکثیر می‌کند.droplet
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