Mutated poliovirus found to beat vaccine protection

Though polio has been nearly eradicated from the globe, researchers have made a troubling discovery that underscores the need to boost vaccination rates in countries that have seen recent outbreaks as well as develop new, more potent vaccines. Detailed in the Proceedings of the National Academy of Sciences, scientists at the University of Bonn uncovered a mutated virus found in polio victims of a 2010 outbreak in the Congo that seemingly resisted vaccine protection. The polio epidemic in the Congo infected 445 people–most of them young adults–and killed 209 of those. The high mortality rate was troubling, especially since surveys indicated that half of the patients claim to have received the recommended three vaccination dosages against the disease. While at the Institute for Virology of the University Hospital of Bonn, Dr. Jan Felix Drexler and colleague Christian Drosten as well as collaborators Drs. Gilda Grard and Eric Leroy from Gabon were interested in...