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Notice: Function _load_textdomain_just_in_time was called incorrectly. Translation loading for the redux-framework domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /home1/express/public_html/wp-includes/functions.php on line 6131

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Notice: Function _load_textdomain_just_in_time was called incorrectly. Translation loading for the wp-plugin-hostgator domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /home1/express/public_html/wp-includes/functions.php on line 6131

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فرنسا: معهد طبي يدرّب الكلاب على رصد كوفيد-19 في عينات من العَرَق البشري - Algerian Express

فرنسا: معهد طبي يدرّب الكلاب على رصد كوفيد-19 في عينات من العَرَق البشري


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يرصد «إليوت» في العادة المخربين أو المفقودين، لكن هذا الكلب من نوع الراعي البلجيكي يخضع منذ شهر لتدريب على رصد «كوفيد – 19» في عرق البشر، في إطار دراسة في جنوب غربي فرنسا.

ويقول متخصصو الأمراض المعدية في مركز بوردو الجامعي تييري بيستون لوكالة الصحافة الفرنسية إن الهدف من هذه الدراسة إيجاد «حلّ مكمّل» في وقت «نحتاج إلى زيادة طرق الرصد السريع».

وقد تعاون المركز مع معهد «سيفا» للصحة الحيوانية، أكبر مختبر بيطري في فرنسا والخامس عالمياً، في هذا المشروع الذي قُدّم أخيراً للصحافة.

وعلى غرار «إليوت»، يتدرب «مارفل» من نوع لابرادور وثلاثة كلاب أخرى من فصيلتي الراعي البلجيكي والراعي الألماني، وكلها أعضاء في كتيبة للكلاب تابعة للدرك وفرق الإطفاء، منذ الرابع من يناير (كانون الثاني) في ليبورن قرب بوردو على «لعبة» جديدة تقوم على رصد آثار تعرّق مسحوبة على مدى عشر دقائق من تحت إبط أشخاص مصابين بـ«كوفيد – 19» في مراحله الأولى.

وتصل بصورة شبه يومية إلى المستشفى الجامعي عينات من العَرَق لتقديمها للكلاب المدربة في مركز للمعلومات أقامته «سيفا» في مركزها في ليبورن.

ويوضح الطبيب المعتمد لدى هيئة «سيفا» بيار ماري بورن أن الكلاب «ترصد المواد العضوية المتحللة المتأتية من الإصابة».

وبعد سماعه إشارة صوتية من المدرّب، يدخل الكلب «إليوت» خطمه في مخاريط معدنية، ثم يبدأ فجأة بتحريك ذيله أمام مخروطتين تضمان عينات من عرض مرضى «كوفيد – 19». حاصداً الثناء من مدرّبه الذي يكافئه بإعطائه بعض الحلوى ولعبته المفضلة.

وكان هذا الكلب قد شارك قبل أيام في مهمة للدرك لتقفي أثر أحد المفقودين.

ويستند هذا المشروع المسمى «سينوكوف» على طريقة تحمل اسم «نوزاييس – كوفيد 19» طورها دومينيك غرانجان الأستاذ في الكلية البيطرية الوطنية في ميزون ألفور قرب باريس وهي تعزز «مروحة الشمّ» لدى الكلب، وقد استخدمت في رصد بعض أنواع السرطان.

ويقول غرانجان إن «الكلاب تنجح في المعدّل برصد 95 في المائة من الإصابات بـ(كوفيد – 19)».

وتخضع هذه الطريقة للاختبار خصوصاً في جزيرة كورسيكا الفرنسية في المتوسط، في مشروع يحظى بدعم 40 بلداً وفق المروجين له.

وبعد ستة إلى ثمانية أسابيع من التدريب بوتيرة أربعة أيام أسبوعياً، يتعين إثبات فعالية الكلاب في دراسة سريرية في المركز الجامعي قبل البدء باستخدام هذه الأداة على نطاق واسع.

ويكمن الهدف في تجربة أداء هذه الكلاب على أنواع مختلفة من العينات لتحديد أوجه مختلفة من المرض، سواء القدرة على فهم مدى خطورة الإصابات أو درجة خطر تفشي العدوى أو مستوى الأعراض، وأيضاً المصابين بأشكال متحورة من الفيروس.

ويوضح بيار ماري بورن أنه في حال النجاح، «ستُستخدم الأداة بشكل خاص لإجراء انتقاء مسبق» للأشخاص المشتبه بإصابتهم بهدف «التصويب على الحاجات للتشخيص التأكيدي» من خلال الفحص المرجعي عبر المسحة الأنفية (بي سي آر).

ويشير رئيس قسم الأمراض المعدية والمدارية في المستشفى الجامعي دوني مالفي إلى أن «هذا النوع من الأدوات التي تقدم بالحد الأدنى معياراً للشك القوي ستتيح تسهيل هذا المسار على صعيد القبول والاستجابة» في ظل الحاجة إلى إجراء فحوص قريباً لأشخاص لا يظهرون أي أعراض في مواقع مختلفة من مدارس ودور مسنين ومطارات.

ويقول الأستاذ الجامعي وهو أيضاً عضو في المجلس العلمي، إن هذه الكلاب «تكاد تكون حليفتنا في إنتاج أداة رصد سيكون لها مكان في الحاجة لإدارة هذه الطوارئ الصحية».

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