Investigation reveals rising bordetella holmesii prevalence in pertussis cases among older children, suggesting necessary adjustments in surveillance and prevention strategies.
We investigated Bordetella holmesii and Bordetella pertussis in 935 suspected pertussis cases in northern India (2019-2023) using PCR and serology. B. holmesii showed increased prevalence in pertussis cases, particularly in older children, highlighting its emerging role and the need for ongoing surveillance and adjusted prevention strategies.
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Shekhar et al. (2025) studied this question.
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