title: Reliability of operational data from pig herds and performance ratings by veterinarians and pig farmers collected during telephone interviews for the evaluation of a PCV2 piglet vaccination.
abstract: BACKGROUND
  The aim of the present study was to evaluate the feasibility of using a telephone survey in gaining an understanding of the possible herd and management factors influencing the performance (i.e. safety and efficacy) of a vaccine against porcine circovirus type 2 (PCV2) in a large number of herds and to estimate customers' satisfaction.
  
  
  RESULTS
  Datasets from 227 pig herds that currently applied or have applied a PCV2 vaccine were analysed. Since 1-, 2- and 3-site production systems were surveyed, the herds were allocated in one of two subsets, where only applicable variables out of 180 were analysed. Group 1 was comprised of herds with sows, suckling pigs and nursery pigs, whereas herds in Group 2 in all cases kept fattening pigs. Overall 14 variables evaluating the subjective satisfaction with one particular PCV2 vaccine were comingled to an abstract dependent variable for further models, which was characterized by a binary outcome from a cluster analysis: good/excellent satisfaction (green cluster) and moderate satisfaction (red cluster). The other 166 variables comprised information about diagnostics, vaccination, housing, management, were considered as independent variables. In Group 1, herds using the vaccine due to recognised PCV2 related health problems (wasting, mortality or porcine dermatitis and nephropathy syndrome) had a 2.4-fold increased chance (1/OR) of belonging to the green cluster. In the final model for Group 1, the diagnosis of diseases other than PCV2, the reason for vaccine administration being other than PCV2-associated diseases and using a single injection of iron had significant influence on allocating into the green cluster (P < 0.05). In Group 2, only unchanged time or delay of time of vaccination influenced the satisfaction (P < 0.05).
  
  
  CONCLUSIONS
  The methodology and statistical approach used in this study were feasible to scientifically assess "satisfaction", and to determine factors influencing farmers' and vets' opinion about the safety and efficacy of a new vaccine.
authors.forename: Heiko
authors.initials: H
authors.lastname: Nathues
authors.forename: Johanna
authors.initials: J
authors.lastname: Meyer-Hamme
authors.forename: Petra
authors.initials: P
authors.lastname: Maass
authors.forename: Ruediger
authors.initials: R
authors.lastname: Goessl
authors.forename: Wibke
authors.initials: W
authors.lastname: Stansen
authors.forename: Rolf
authors.initials: R
authors.lastname: Steens
authors.forename: Elisabeth
authors.initials: E
authors.lastname: Grosse Beilage
mesh_terms: D000818:Animals; D018173:Circoviridae Infections / Q000517:prevention & control / Q000662:veterinary* / Q000821:virology; D017925:Circovirus; D016000:Cluster Analysis; D006801:Humans; D007407:Interviews as Topic; D053570:Porcine Postweaning Multisystemic Wasting Syndrome / Q000517:prevention & control; D025341:Principal Component Analysis; D013552:Swine; D013553:Swine Diseases / Q000517:prevention & control*; D013689:Telephone; D014611:Vaccination / Q000009:adverse effects / Q000662:veterinary*; D018634:Veterinarians; D014765:Viral Vaccines / Q000008:administration & dosage / Q000009:adverse effects / Q000276:immunology*
chemical_list: D014765:Viral Vaccines