أرسل هذا في رسالة قصيرة: Low antibody titers five years after vaccination with the CYD-TDV dengue vaccine in both pre-immune and naïve vaccinees

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