To determine changes in Bordetella pertussis and B. parapertussis detection rates, we analyzed 1.43 million respiratory multiplex PCR test results from US facilities from 2019 through mid-2023. From mid-2022 through mid-2023, Bordetella spp. detection increased 8.5-fold; 95% of detections were B. parapertussis. While B. parapertussis rates increased, B. pertussis rates decreased.
Keywords: 2019 novel coronavirus disease; Bordetella parapertussis; Bordetella pertussis; COVID-19; SARS-CoV-2; United States; bacteria; coronavirus disease; public health; respiratory infections; severe acute respiratory syndrome coronavirus 2; surveillance network; viruses; whooping cough; zoonoses.