أرسل هذا في رسالة قصيرة: Serological differentiation between COVID-19 and SARS infections

 __   __    _____               _____     _  _   
 \ \\/ //  |  ___||   ____     |  ___||  | \| || 
  \   //   | ||__    |    \\   | ||__    |  ' || 
  / . \\   | ||__    | [] ||   | ||__    | .  || 
 /_//\_\\  |_____||  |  __//   |_____||  |_|\_|| 
 `-`  --`  `-----`   |_|`-`    `-----`   `-` -`  
                     `-`