أرسل هذا في رسالة قصيرة: Effects of recent prior dengue infection on risk and severity of subsequent SARS-CoV-2 infection: a retrospective cohort study

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