The case in Madang is a four-year-old boy who had an onset of paralysis on 11 July 2018.
His symptoms were fever, muscle weakness on right leg and left arm.
The Eastern Highlands case involves a two-and-a-half-year-old boy who had weakness on both of his legs that started on 23 June 2018.
Genetic analysis made by the United States Centres for Disease Control and Prevention confirmed that these two cases are linked to the ongoing polio outbreak in the country.
To date, PNG has a total of six polio cases since the announcement of the outbreak in June 2018: two in Morobe, two in Eastern Highlands, and one each in Enga and Madang.
Meanwhile, round 2 of the polio vaccination campaign in Madang, Eastern Highlands and Morobe provinces is into its second week while Enga, Simbu, Southern and Western Highlands, Jiwaka and Hela provinces commenced first round of vaccination simultaneously on Monday, August 27th.