The bacterium that causes whooping cough, Bordetella pertussis, has changed in Australia — most likely in response to the vaccine used to prevent the disease — with a possible reduced effectiveness of the vaccine as a result. A team of researchers analyzed strains of Bordetella pertussis from across Australia and found that many strains no longer produce a key surface protein called pertactin. …Read Full Story
Whooping cough bacterium evolving in Australia, research shows
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