The reduction in the incidence of poliomyelitis has stalled in the past 7 years, and an urgent re-assessment of the polio-eradication and post-eradication campaign strategies is needed. We propose that vaccination programmes are crucially important for the maintenance of high levels of population immunity against polio and should be continued into the foreseeable future.
- Konstantin Chumakov
- Ellie Ehrenfeld
- Vadim I. Agol
