כל העכברים מתו בתוך שמונה ימים מההדבקה. מומחים מודאגים מרמת הבטיחות הביולוגית בה בוצע הניסוי, וחוששים מהאפשרות שהנגיף ידלוף

קרן זריהן | 16 בינואר 2024 | חדשות | 3 דק׳

חוקרים בסין ערכו ניסויים בנגיף קורונה שגרם ל-100% תמותה בעכברים

בניסויים שערכו בנגיף ממשפחת הקורונה, הקשור בקשר הדוק לנגיף שגרם למחלת ה-Covid-19, גילו מדענים בסין שיש לו יכולת הרג של 100% (kill rate) בעכברים מהונדסים גנטית.

על פי הודעת החוקרים מה-4 בינואר, המדענים טענו כי שיבטו נגיף קורונה מפנגולין (יונק מכוסה שריון הנפוץ באסיה) והדביקו עכברים עם רצפטור אנושי המסייע בכניסת וירוס הקורונה לתוך התאים (עכברי hACE2), שעברו את השינוי הגנטי כדי "להעריך את הפתוגניות שלו". את ממצאיהם פרסמו במאמר טרום-דפוס שפורסם ב-bioRxiv.

כל ארבעת העכברים שנדבקו בנגיף החלו לרדת במשקל בתוך חמישה ימים לאחר ההדבקה. ביום השביעי הם הראו תסמינים כגון תנועות איטיות ויציבה שפופה, ועיניהם הלבינו, וכולם מתו בתוך שמונה ימים מרגע ההדבקה. החוקרים תיארו את התוצאות כ"מפתיעות".

רוצה לקרוא עוד?

להמשך קריאה הירשמו או התחברו

טכנאי מעבדה עובד על דגימות במתקן לבדיקות קורונה, בווהאן בסין, 5 באוגוסט 2021 | צילום: STR/AFP via Getty Images

טכנאי מעבדה עובד על דגימות במתקן לבדיקות קורונה, בווהאן בסין, 5 באוגוסט 2021 | צילום: STR/AFP via Getty Images

נשיא ארה"ב דונלד טראמפ, המנהיג העליון של איראן, עלי ח'מינאי | צילומים: Andrew Harnik/Getty Images, khamenei.ir

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הירשמו לניוזלטר שלנו וקבלו תוכן חדש למייל מדי חודש

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