Few Polio Cases Reported In Pakistan But Virus Persists In Sewage
Science: ‘What the hell is going on?’ Polio cases are vanishing in Pakistan, yet the virus won’t go away
“Just a year ago, poliovirus seemed on its last legs in Pakistan, one of its final strongholds. Polio cases were steadily falling, from 306 in 2014 to 54 in 2015, 20 in 2016, and, by last count, eight in 2017. … Unsettling new findings, however, show it is far from gone. In the most extensive effort in any country to scour the environment for traces of the virus, polio workers are finding it widely across Pakistan, in places they thought it had disappeared…” (Roberts, 1/11).