| Value | Category | 
                                    
                    
                        | 1 | autoclave | 
                                    
                    
                        | 2 | Dry heating | 
                                    
                    
                        | 3 | Poupinel | 
                                    
                    
                        | 4 | alcohol | 
                                    
                    
                        | 5 | Bleach | 
                                    
                    
                        | 6 | incinerator | 
                                    
                    
                        | 7 | boil | 
                                    
                    
                        | 8 | NA | 
                            
            Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.