Resistance to Whooping Cough Vaccine Is Growinghttp://articles.mercola.com/sites/articles/archive/2001/06/02/whooping-cough-part-one.aspxThe bacterium that causes whooping cough is mutating to develop resistance to the vaccine used to immunize Dutch schoolchildren against the disease. It seems like the bacterium is changing part of its coat, thereby disguising itself. In recent years whoopingenCommunityServer 2008.5 SP1 (Build: 31106.3070)