Polio outbreak in Papua New Guinea after 18 years; experts say it was avoidable

They put the blame on poor vaccination coverage and unsanitary living conditions

Fresh cases of polio in Syria spark fears of global disease outbreak

Many people from Syria, who have fled West Asia to escape civil strife, may carry the disease to nations where they seek refuge

India declared polio free; no new case in 3 years

Children in the country will, however, continue to be vaccinated against the disease to maintain immunity