Full Description
In recent decades, changes in pertussis epidemiology have been noted, likely related to the use of acellular pertussis vaccines, which in many countries have replacedolder-generation, whole-cell pertussis vaccines.
In recent decades, changes in pertussis epidemiology have been noted, likely related to the use of acellular pertussis vaccines, which in many countries have replacedolder-generation, whole-cell pertussis vaccines.