Whooping Cough Surge: US Deaths Rise & Infections Spread

A resurgence of whooping cough, or pertussis, is claiming lives and impacting communities across the U.S., with at least 13 deaths reported in 2025. While case numbers are down from the significant spike seen in 2024, the current infection rate remains concerningly elevated compared to pre-pandemic levels, signaling a persistent vulnerability and raising questions about long-term immunity and public health preparedness.

Whooping cough is caused by the bacterium Bordetella pertussis, and is characterized by a severe, prolonged cough. The infection’s nickname, the “100-day cough,” reflects the debilitating nature of its lingering symptoms. While the disease isn’t always fatal, its impact on respiratory health, especially in vulnerable populations, is significant. The current increase is particularly noteworthy when viewed against the backdrop of the COVID-19 pandemic. Public health measures like masking and social distancing, while effective against COVID-19, inadvertently reduced exposure to many common respiratory illnesses, including pertussis. This led to a decrease in natural immunity, creating a larger pool of susceptible individuals when restrictions were lifted.

The dramatic drop in cases during the peak of the pandemic – falling to under 10,000 annually between 2020-2023 – masked a growing immunity gap. Prior to 2020, the U.S. typically saw between 10,000 and 20,000 cases each year, peaking at 48,277 in 2012. The 2024 surge, with over 41,000 cases, demonstrated the rapid return of the disease once preventative measures were relaxed. The current numbers, while lower than 2024, still indicate a substantial increase in risk compared to the pre-pandemic baseline.

The Forward Look

The resurgence of whooping cough isn’t a temporary blip. We can anticipate several key developments in the coming months and years. First, expect increased public health campaigns emphasizing the importance of booster vaccinations, particularly for adolescents and pregnant women (to protect newborns). The CDC will likely refine its vaccination recommendations based on the evolving epidemiological data. Second, pharmaceutical companies are under pressure to develop more effective pertussis vaccines. Current vaccines offer good protection initially, but immunity wanes over time, necessitating boosters. Research into next-generation vaccines that provide longer-lasting protection is crucial. Finally, and perhaps most importantly, this outbreak serves as a stark reminder of the interconnectedness of public health. The lessons learned from the COVID-19 pandemic – the importance of surveillance, rapid response, and sustained vaccination efforts – are directly applicable to controlling the spread of other preventable diseases like whooping cough. Failure to invest in these areas will leave communities vulnerable to future outbreaks, and potentially, a more severe public health crisis.