Resurgence of whooping cough in the United States
Whooping cough cases in the United States have seen a significant increase during 2025, according to preliminary data from the Centers for Disease Control and Prevention (CDC). With 8,485 infections reported to date, the figure doubles the records for the same period in 2024. This phenomenon has led public health specialists to anticipate a particularly challenging year in the management of this bacterial disease.
Factors behind the rebound
The resurgence of Bordetella pertussis, the bacteria that causes whooping cough, is not unexpected for the medical community. During the COVID-19 pandemic, biosafety measures—such as the use of masks and social distancing—contributed to a temporary reduction in infections. However, experts point out that this pathology follows a cyclical pattern, with epidemic peaks every two to five years.
However, the current situation reflects a deeper problem: the decline in vaccination rates. Official data reveal that vaccination coverage in kindergartens reached its lowest level in the last decade, while exemptions for non-medical reasons registered an all-time high. Dr. Ericka Hayes, a specialist at the Children’s Hospital of Philadelphia, warns: “When vaccination falls below 95%, herd immunity is lost, leaving entire populations vulnerable.”
Impact and clinical characteristics of whooping cough
The disease, also known as pertussis, usually initially manifests itself with symptoms similar to those of a common cold. However, it progresses to a persistent and severe cough, accompanied by a characteristic whistling sound during inhalation. Its transmission occurs through respiratory droplets expelled when coughing or sneezing, which facilitates its spread in community environments.
Prevention and treatment strategies
Primary treatment consists of specific antibiotics, although doctors emphasize that vaccination remains the most effective tool for preventing outbreaks. The DTaP (diphtheria, tetanus, and pertussis) vaccine is administered in five doses during childhood, while a booster (Tdap) is recommended for adolescents and adults.
Experts link the current outbreak not only to biological factors, but also to growing misinformation about vaccines. “Vaccine hesitancy is affecting our ability to control diseases we already had under control,” adds Dr. Hayes. This scenario highlights the need for educational campaigns that combat myths and promote scientific evidence.
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