@article{awastewaterbasedharmlessdelay,
  title = {The emergence of a virus variant: dynamics of a competition model with cross-immunity time-delay validated by wastewater surveillance data for COVID-19},
  author = {Bruce Pell and Samantha Brozak and Tin Phan and Fuqing Wu and Yang Kuang},
  year = {2022},
  eprint = {2209.07563},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2209.07563v2},
}