To cite package ‘rts2’ in publications use:

  Watson S (2026). _rts2: Real-Time Disease Surveillance_. R package
  version 1.0.2, <https://CRAN.R-project.org/package=rts2>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {rts2: Real-Time Disease Surveillance},
    author = {Sam Watson},
    year = {2026},
    note = {R package version 1.0.2},
    url = {https://CRAN.R-project.org/package=rts2},
  }