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          The world in photos: June 29 - July 5
          
        
          
      
          
      
          
        
          
          chinadaily.com.cn |
          Updated: 2020-07-06 14:42
          
          
          
          
        


        
      
          
      
          
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   Professor Albert Bosch from the Faculty of Biology of the University of Barcelona works in the office. He confirmed on June 29 that a study he had coordinated detected the presence of the novel coronavirus in waste water samples collected in Barcelona on March 12, 2019. [Photo/Xinhua] 
 
           

           

          
        
          

        
        
      
    
        

        

      
          
      

    
          
    
          

      
          

        
      
          

    
          


    
          
      
          

        
          
        
          
        
      
          
      
          

        
        
      
      
    
      
          
    
          


    
      
      
      
          
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