Text this: Coronaviruses resistant to a 3C-like protease inhibitor are attenuated for replication and pathogenesis, revealing a low genetic barrier but high fitness cost of resistance

  _____     _____    __   __   _    _    _    _   
 |__  //   |  ___||  \ \\/ // | || | || | |  | || 
   / //    | ||__     \   //  | || | || | |/\| || 
  / //__   | ||__     / . \\  | \\_/ || |  /\  || 
 /_____||  |_____||  /_//\_\\  \____//  |_// \_|| 
 `-----`   `-----`   `-`  --`   `---`   `-`   `-`