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[A minor epidemic of pertussis cough in Brno]
Insights
Many children with pertussoid cough have other causes, not just pertussis. This study found various pathogens like RS virus and M. pneumoniae in infants with cough symptoms.
Area of Science:
- Pediatrics
- Infectious Diseases
- Microbiology
Background:
- Pertussoid cough is a common symptom in infants and young children.
- While pertussis is a known cause, other pathogens can also present with similar symptoms.
- Accurate diagnosis is crucial for appropriate treatment and public health management.
Purpose of the Study:
- To investigate the aetiology of pertussoid cough in children aged 1-32 months.
- To identify the prevalence of pertussis and other respiratory pathogens in this cohort.
- To assess the role of vaccination status in pertussis and parapertussis cases.
Main Methods:
- Prospective investigation of 32 children presenting with pertussoid cough over six months.
- Diagnostic methods included cultivation and serological examinations.
- Clinical data, including vaccination status, were collected for all participants.
Main Results:
- Only one case of confirmed pertussis was identified in a vaccinated child.
- One case of parapertussis was found in an incompletely vaccinated infant.
- The remaining 30 children were diagnosed with other aetiologies, including Respiratory Syncytial (RS) virus, adenovirus, parainfluenza 2, Mycoplasma pneumoniae, Haemophilus influenzae, and Branhamella catarrhalis.
Conclusions:
- Pertussoid cough in young children is frequently caused by pathogens other than Bordetella pertussis.
- Alternative aetiologies should be considered in the differential diagnosis of persistent cough in infants.
- The study highlights the importance of comprehensive diagnostic workups to identify the causative agent in pediatric respiratory infections.
Abstract:
In the course of six months the authors investigated 32 children aged 1-32 months with pertussoid cough. This number included one child where pertussis was confirmed in a 25-month-old properly vaccinated child and parapertussis in an 8-month-old incompletely vaccinated infant. In the remaining children by cultivation or serological examination a different aetiology was found (RS virus, adenovirus, parainfluenza 2, M. pneumoniae, H. influenzae, Branhamella catarrhalis).