@misc{indiciaeaead3d27a5f5,
  title = {Breakdowns in S.19-vaccinated herds.},
  author = {C Fennell},
  year = {1968},
  doi = {10.1136/vr.83.13.334},
  url = {https://pubmed.ncbi.nlm.nih.gov/5694010/},
  note = {Source identifier: 5694010}
}