Recent Pandemic Viruses Jumped to Humans Without Prior Adaptation, UC San Diego Study Finds - UC San Diego Today
health 2026/03/10 03:56:31

Recent Pandemic Viruses Jumped to Humans Without Prior Adaptation, UC San Diego Study Finds - UC San Diego Today

Source:Ucsd.edu
Author:None

There is no evolutionary signal suggesting that these viruses were being “pre-adapted” for humans prior to their outbreaks. Instead, measurable changes in selection typically appeared only after sustained transmission began in people.