BMJ British Medical Journal July 17, 2013
‘The adjusted estimate of effectiveness of Tdap vaccination against pertussis was 53.0%’
Abstract
Objective To assess the effectiveness of reduced acellular pertussis (Tdap) vaccines in adolescents and adults.
Setting Kaiser Permanente Northern California.
Design Case-control study.
You will find this case study in the blog roll of the high-energy rock band, The Refusers. The pertussis vaccine is ineffective roughly half of the time.
http://therefusers.com
