Author: Manuel Jara; David A. Rasmussen; Cesar A. Corzo; Gustavo Machado
                    Title: On reproductive and respiratory syndrome virus dissemination across pig production systems in the United States  Document date: 2020_4_10
                    ID: egou3m1n_1
                    
                    Snippet: Likewise, recombination between North American wild-type virus strains and modified-live vaccines 45.....
                    
                    
                    
                     
                    
                    
                    
                    
                        
                            
                                Document: Likewise, recombination between North American wild-type virus strains and modified-live vaccines 45
 
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