The World Health Organization has identified roughly 100 cases of a “vaccine-derived”polio so far this year.
Andrew Noymer, an associate professor of public health and a member of the Center for Virus Research at the University of California Irvine says the global polio eradication effort has made incredible progress over the last three decades but now it’s reached a difficult moment. He compares the current efforts to vaccinate every child against polio to being stuck on a treadmill.
“You have to keep vaccinating all the children so you won’t have any paralyzed children,” Noymer says, “But the more you vaccinate, the more live virus continues to circulate. And the minute you step off the treadmill, you get some paralyzed kids.”
Read more at the National Public Radio