نقش عوامل محیطی در انتقال ویروس SARS- CoV- 2 و راهکارهای کاهش آن
فصلنامه علمی پژوهشی بهداشت در عرصه,
دوره 9 شماره 4 (1400),
31 بهمن 2024
,
صفحه 1-9
https://doi.org/10.22037/jhf.v9i4.37774
چکیده
زمينه و اهداف: دانش محدود در مورد مکانیسم انتقال ویروس SARS-CoV-2 و عوامل تاثیر گذار بر آن یک چالش در مقیاس جهانی است. با توجه به شیوع بالای اپیدمی کووید-19، انتقال هوایی ویروس نسبت به دیگر راههای انتقال مورد توجه بیشتر میباشد. بنابراین در این مطالعه به بررسی نقش انتقال هوایی این ویروس، نمونه برداری از هوای داخلی بخش بستری بیماران کرونایی بیمارستان سینا اهواز انجام شد.
مواد و روشها: در هر یک از محلهای نمونه برداری، از دو نقطه با فاصلهی کمتر یا مساوی 1 متر از تخت بیماران (در اتاق بیماران) و فاصله بیش از 3 متر از تخت بیماران (در راهرو و ایستگاه پرستار) نمونه هوا به دو روش فعال و غیر فعال جمع آوری و در زنجیرهی سرما به آزمایشگاه منتقل شد. سپس با استفاده از واکنش زنجیرهای پلیمراز رونویسی معکوس (RT- PCR) برای حضور یا عدم حضور ویروس مورد بررسی قرار گرفتند. در تمام مراحل، ملاحظات اخلاقی مد نظر قرار گرفت.
يافتهها: از کل نمونههای هوای (21 نمونه) جمعآوری شده برای حضور ویروس SARS-CoV-2، 52/9% نمونهها (2 نمونه) مثبت شدند که هر 2 نمونه مثبت در اتاق بیماران و توسط روش نمونهبرداری فعال هوا ثبت شدند. تجزیه و تحلیل چند متغیره نشان داد که از بین پارامترهای مورد مطالعه، بیشترین همبستگی بین حضور ویروس در نمونههای هوا با دما، رطوبت نسبی، غلظت ذرات موجود در هوا به دست آمد.
نتيجهگيري: تحقیق بیانگر وجود بیوآئروسلهای SARS-CoV-2 در هوای داخل بیمارستان میباشد.
- ویروس SARS-CoV-2، هوابرد، کیفیت هوای داخل ساختمان، RT- PCR، ذرات معلق در هوا
ارجاع به مقاله
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