Ying Chen, Xiaoxiao Hou, Jiaxin Zhong, Kai Liu
Association between red cell distribution width and hypertension: Results from NHANES 1999-2018
PloS one
introduction universal pertussis immunization high coverage achieved developed countries largely changed epidemiology disease although vaccination rates high first year life rates booster doses unsatisfactory lead onset outbreaks report describes outbreak pertussis affecting school students already immunized town puglia italy detected end april 2009 vaccine effectiveness measured calculating incidence rates attack rates ar disease among vaccinated arv unvaccinated aru people determining percentage reduction incidence rate disease among vaccinated people compared unvaccinated people index case healthy child female 9yearsold attended local elementary school developed pertussis 27 april 2009 secondary cases aunt cousin index case developed cough 10 may 2009 elementary class index case cluster occurred overall ar 158 particular 20 children receive booster doses 56 years old aru 143 children receiving booster arv booster dose setting 285 moreover index case developed persistent cough moderate severe pertussis 100 cluster detected middle school class cousin index case attended ar 444 1227 aru 50 1020 arv 286 27 setting 428 results confirm need administer booster doses failure booster principal determinant outbreak onset