A novel study shows that pertactin deficient Bordetella pertussis strains have disappeared in Belgium
Prior to the COVID-19 pandemic, Bordetella pertussis strains deficient in pertactin (Prn) were increasing globally, particularly in countries using acellular pertussis vaccines. By 2017–2020, Prn-deficient B. pertussis strains constituted the majority of circulating isolates in Blegium. However, in the post-COVID-19...


