| surveillance of poliomyelitis in northern italy: results of acute flaccid paralysis surveillance and environmental surveillance, 2012-2015. | although in the last years poliovirus (pv) transmission has been reported at the lowest levels ever recorded, the spread of virus from endemic countries endures; the high levels of immigration flows across the mediterranean sea jeopardize italy for pv reintroduction. the world health organization (who) strategic plan for global poliomyelitis (polio) eradication indicates the nationwide surveillance of acute flaccid paralysis (afp) as the gold standard for detecting cases of polio. in addition, t ... | 2017 | 27929744 |