Push for polio eradication by WHO
Member states of the WHO, meeting in Geneva, are expected to declare polio a global public health emergency, and will launch one last push to finally eradicate the disease.
The World Health Organisation originally set the year 2000 as its target for polio eradication, but the date was missed. Polio remains endemic in just three countries: Afghanistan, Pakistan and Nigeria.
Imogen Foulkes reports.