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الصحة العالمية تعلن نجاح التجارب على لقاح فعال لمنع انتشار مرض الإيبولا الفتاك

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الصحة العالمية تعلن نجاح التجارب على لقاح فعال لمنع انتشار مرض الإيبولا الفتاك
Credit: CELLOU BINANI/AFP/Getty Images

(CNN)-- أعلنت منظمة الصحة العالمية الجمعة، عن لقاح تم تطويره حديثا لمكافحة مرض الإيبولا القاتل، وأثبت فعالية كبيرة، ويمكن أن يمنع الانتشار الحالي للمرض، وتفشيه في المستقبل.

وقد بدأت التجارب على لقاح  VSV-EBOV في مارس آذار في غينيا، إحدى الدول في غرب أفريقيا التي يتفشى فيها المرض، وقد أظهرت التجارب نتائج واعدة هذا الأسبوع، وتم اتخاذ قرار فوري بتوسيع استخدام اللقاح لجميع الأشخاص المعرضين للخطر، بحسب ما أفادت المنظمة في بيان صحفي.

ومرض فيروس الإيبولا كان يعرف باسم "حمى الإيبولا النزفية،" هو مرض خطير يصيب الإنسان وغالباً ما يكون قاتلاً.

وينتقل الفيروس إلى الإنسان من الحيوانات البرية وينتشر بين صفوف التجمعات البشرية عن طريق سريانه من إنسان إلى آخر.

ويبلغ معدل الوفيات في حالات الإصابة بمرض فيروس الإيبولا نسبة 50% تقريباً في المتوسط، ولكن هذا المعدل تراوح بين نسبتي 25% و90% في الفاشيات التي اندلعت في الماضي بحسب إحصاءات المنظمة الدولية، وظهر المرض للمرة الأولى في عام 1976 في السودان والكونغو الديمقراطية قرب نهر إيبولا الذي اكتسب المرض اسمه منه.