Researchers in the United Kingdom have identified a possible link between long‑lasting coughs and previously undetected bacterial lung infections similar to whooping cough. The study, released this month, points to a sizable share of chronic cough cases that could be treated with antibiotics if correctlly diagnosed.

UK whooping cough resurgence fuels new study

According to the research team, a recent spike in pertussis cases across the UK prompted investigators to examine whether the bacterium was hiding behind adult coughs that doctors often label as asthma or allergies. The authors note that the resurgence of whooping cough, traditionally seen as a childhood disease, has been documented by public‑health officials since early 2024.

Study links 30% of chronic coughs to undiagnosed pertussis

The analysis, which surveyed over 1,200 patients with coughs persisting longer than eight weeks, found that roughly 30 % tested positive for Bordetella pertussis DNA despite having no prior diagnosis. as the report states, these infections were “largely invisible” because standard respiratory panels do not routinely screen for pertussis in adults.

Patients who received targeted antibiotic therapy reported symptom relief within two weeks, contrasting sharply with the months‑long suffering described by the control group. The authors argue that expanding diagnostic criteria could curb both individual misery and broader transmission .

Infant deaths rise amid undetected bacterial cough

Public‑health data cited in the study show a troubling uptick in infant fatalities linked to prolonged coughs, with at least six deaths recorded in the past year where pertussis was only identified post‑mortem. Health officials warn that delayed recognition of the disease in caregivers can increase exposure risk for newborns, who are especially vulnerable to severe outcomes.

How many adult coughs remain misdiagnosed?

One unanswered question highlighted by the authors is the true scale of adult coughs that are misattributed to non‑infectious causes.. the study did not include a nationwide screening,so the authors caution that the 30 % figure may underestimate the problem.. Additionally,the research did not assess the role of co‑infection with viruses such as COVID‑19, leaving a gap in understanding the full clinical picture.

According to the report, further large‑scale testing is needed to determine whether routine pertussis screening should become standard practice in primary‑care settings.