VOA News: Researchers Identify Vaccine-Resistant Polio Strain
“As the world enters the final phase of a global polio eradication effort, French researchers have identified a mutant strain of the virus that is resistant to the polio vaccine. Despite this, an American expert said the war on polio can be won with continued vaccination. … [A] mutant strain of the virus responsible for a deadly outbreak in the Republic of the Congo in 2010 has been discovered, rendering the polio vaccine less effective…” (Berman, 11/12).