The overwhelming dominance of the MT28 variant with non-vaccine type ptxP 3 and an increasing trend of PRN-deficient B. pertussis isolates circulating in China support the speculation of the existence of vaccine escape.
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Waning immunity, prevailing non-vaccine type <i>ptxP3</i> and macrolide-resistant strains in the 2024 pertussis outbreak in China: a multicentre cross-sectional descriptive study.
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