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Chad, Ethiopia, France, and Nigeria http://www.casasarticola.com/index.php/exploring-complexities-in-the-european-conference-on-complex-systems-september-2013/reported|announced|notified} of newest vaccine-induced polio cases. Although the five mutations causing moderate resistance to sulfadoxine and pyrimethamine were quite common, mutations leading to high resistance were rare.
Chad, Ethiopia, France, and Nigeria http://www.casasarticola.com/index.php/exploring-complexities-in-the-european-conference-on-complex-systems-september-2013/reported|announced|notified} of newest vaccine-induced polio cases. Although the five mutations causing moderate resistance to sulfadoxine and pyrimethamine were quite common, mutations leading to high resistance were rare.