EPISODE · Mar 31, 2026 · 21 MIN
725-人畜共患病毒爆发前后的自然选择动态
from 聊聊Sci
这份研究报告利用系统发育框架探讨了人畜共患病毒在暴发前是否需要经过适应性进化。通过对 SARS-CoV-2、埃博拉和流感等病毒的分析，作者发现这些病毒在进入人体前，其自然选择压力信号与在原始宿主中并无显著差异。这表明，许多病毒无需预先适应便具备人际传播的能力。相比之下，1977年 H1N1 流感的重现则表现出明显的实验室培养选择特征。该研究为识别病毒是通过自然演化、中间宿主还是人工干预传播提供了重要的科学依据。References: Havens J L, Pond S L K, Zehr J D, et al. Dynamics of natural selection preceding human viral epidemics and pandemics[J]. bioRxiv, 2025.前往小宇宙评论区与主播互动
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725-人畜共患病毒爆发前后的自然选择动态
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