A study, performed at Kaiser Permanente (a health insurer) in California, examined children who contracted whooping cough during an outbreak in 2010 and found that most had in fact been fully vaccinated. According to Reuters News Service April 3, “Of the 132 patients under age 18, 81 percent were up to date on recommended whooping cough shots and eight percent had never been vaccinated. The other 11 percent had received at least one shot, but not the complete series.”
Meanwhile, Big Pharma advocates have been bashing parents who delay vaccination, claiming they are causing whooping cough epidemics. This is now patently false.
Dr. Joseph Mercola, who operates a huge website advocating natural health based on research outcomes, has a very interesting discussion of the Kaiser Permanente findings. He also quotes a key doctor who claims the efficacy of the new whooping cough vaccine was manipulated when a World Health Organization vaccine-oversight committee, which the doctor was a member of, redefined a case of whooping cough. This tougher definition involved 1) having at least 21 days of paroxysmal coughing and 2) laboratory confirmation. Since milder cases were excluded from the results of the efficacy study, the vaccine looked a lot more effective than it actually was, charged James D. Cherry, MD, who published his article recently in the respected journal Pediatrics.
News on Kaiser Permanente study http://www.reuters.com/article/2012/04/03/us-whoopingcough-idUSBRE8320TM20120403
James D. Cherry in journal Pediatrics http://pediatrics.aappublications.org/content/129/5/968.extract