בשבוע שעבר פורסם מחקר (בשלב Preprint) על ידי חוקרים באוניברסיטת בוסטון, שהראה כי הם הצליחו לפתח…

צוות אפוק | 18 באוקטובר 2022 | חדשות | 1 דק׳

חוקרים מאוניברסיטת בוסטון מפתחים וריאנט של קורונה עם שיעור הרג של 80 אחוז בעכברים

בשבוע שעבר פורסם מחקר (בשלב Preprint) על ידי חוקרים באוניברסיטת בוסטון, שהראה כי הם הצליחו לפתח במעבדה וריאנט של קוביד-19 שהרג 80 אחוז מהעכברים שנדבקו בו.

צוות החוקרים חילץ "חלבון ספייק" מתוך וריאנט האומיקרון (BA.1) שלו "מספר רב של מוטציות באופן יוצא דופן", נכתב במחקר. לאחר מכן צורף חלבון הספייק, שהוא מבנה המאפשר לנגיף להיקשר ולפלוש לתאים אנושיים, לווריאנט המקורי של נגיף הקורונה שהתגלה בווהאן, שעל פי דיווחים הופיע בסוף 2019. השילוב שנוצר כונה "אומיקרון-S".

בעוד וריאנט האומיקרון גורם לזיהום קל ולא קטלני אצל עכברים, כותבים החוקרים, "האומיקרון-S גורם למחלה קשה עם שיעור תמותה של 80 אחוז". עם זאת, החוקרים מציינים כי לעכברים ולבני אדם מערכות חיסון שונות מאוד. עקב כך, אם האומיקרון-S היה מדביק בני אדם, לא סביר שהוא היה קטלני.

רוצה לקרוא עוד?

להמשך קריאה הירשמו או התחברו

מעבדה העוסקת בייצור חיסונים בחברת ביוטק (התמונה להמחשה) | צילום: PATRICK HERTZOG/AFP via Getty Images

מעבדה העוסקת בייצור חיסונים בחברת ביוטק (התמונה להמחשה) | צילום: PATRICK HERTZOG/AFP via Getty Images

צילום: Mark Ralston/AFP via Getty Images

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פרשת המעורבות הקטארית – בית המשפט החליט לשחרר את אוריך ופלדשטיין למעצר בית

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נשיא סוריה, אבו מוחמד אלג'ולאני

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יוני בן מנחם

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בית המשפט בקוריאה הדרומית אישר את הדחת הנשיא בעקבות הכרזתו על משטר צבאי במדינה

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