“…Bordetella pertussis ( B. pertussis ) is the causative agent of pertussis disease, which has resurged in many countries in recent years, with a disproportionate number of cases and fatalities in infants too young to be vaccinated [1] , [2] , [3] , [4] , [5] . Globally, many countries including the United Kingdom, Belgium, the Czech Republic, the United States, Mexico, Argentina, Brazil and Australia have introduced maternal immunisation programmes utilising tetanus, diphtheria, acellular pertussis vaccines with or without inactivated polio (Tdap-IPV and Tdap, respectively) [6] , [7] , [8] , [9] .…”