@misc{indiciae38357007d4a4,
  title = {Herd immunity: history, theory, practice.},
  author = {P E Fine},
  year = {1993},
  doi = {10.1093/oxfordjournals.epirev.a036121},
  url = {https://pubmed.ncbi.nlm.nih.gov/8174658/},
  note = {Source identifier: 8174658}
}