To cite package ‘covid19us’ in publications use:

  Dobbyn A (2024). _covid19us: Cases of COVID-19 in the United States_.
  R package version 0.1.9, <https://github.com/aedobbyn/covid19us>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {covid19us: Cases of COVID-19 in the United States},
    author = {Amanda Dobbyn},
    year = {2024},
    note = {R package version 0.1.9},
    url = {https://github.com/aedobbyn/covid19us},
  }