2023.03.02 17:28   

      

                                                   H1N1        H3N2        Yamagata     Victoria                                                                   1.                                            2.                               3.                                                                                                 1.                               2.                                              3.                                                                                         4.      

     

                              

 

 

        2  22          
                
           
       
              
               
            
     