包括有1000年历史的《约克福音》在内的古代手稿揭示了一种致命的绵羊病毒的痕迹，其历史可以追溯到3700多年前。科学家们发现，这种病毒仍然引人注目，Ancient manuscripts, including the 1,000-year-old York Gospels, have revealed traces of a deadly sheep virus whose history stretches back more than 3,700 years. Scientists discovered that the virus has remained remarkabl