Papua New Guinea has reported the death of a boy due to polio, following an outbreak with 14 confirmed cases across the country.
The child died when the muscles around their lungs became paralysed by the virus.
While the country has been declared polio-free in 2000, the rate of vaccination has been falling in the country, which stands now at 47 per cent.
Nigeria, Pakistan and Afghanistan are the other countries where polio is still prevalent due to the presence of the wild poliovirus. In Papua New Guinea it is the vaccine-derived poliovirus that resulted the outbreak.
In its latest polio vaccine campaign, WHO has deployed 9,000 workers across 22 provinces of the Pacific island nation.