WHO says vaccine-derived poliovirus detected in Papua New Guinea

The World Health Organization (WHO) headquarters in Geneva, Switzerland, January 28, 2025. (Reuters/File)
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Updated 21 May 2025
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WHO says vaccine-derived poliovirus detected in Papua New Guinea

  • Wild polio is only endemic in Pakistan and Afghanistan but vaccine-derived polio continues to cause outbreaks in wider range of countries
  • This is first polio outbreak in Papua New Guinea since 2018 when an outbreak was reported in the same area as the new detections, Lae city

The World Health Organization said on Tuesday that circulating vaccine-derived poliovirus type 2 (cVDPV2) had been detected in stool specimens of two healthy children in Papua New Guinea on May 9.

The detection of wild poliovirus or vaccine-derived poliovirus, including from samples taken from healthy children, is considered a serious public health event, WHO said in a statement.

It added that the detection of circulating type 2 poliovirus was classified as a “polio outbreak.”

Wild polio is only endemic in Pakistan and Afghanistan, but vaccine-derived polio continues to cause outbreaks in a wider range of countries. For example, this year, countries including Nigeria and Ethiopia, among others, have reported tens of cases of paralysis caused by polio.

This is the first polio outbreak in Papua New Guinea since 2018, when an outbreak was reported in the same area as the new detections, Lae city in Morobe province.

Vaccination protects against all forms of polio, but coverage rates in Papua New Guinea are only around 44 percent for the third dose needed for protection, the WHO said. Efforts are now underway to detect further transmission and boost vaccination coverage in the affected area.

Poliomyelitis, which is spread mainly through the faecal-oral route, is a highly infectious virus that can invade the nervous system and cause paralysis and death in young children, with those under 2 years old most at risk. In nearly all cases it has no symptoms, making it hard to detect. 


Neighbors of alleged Bondi gunmen shocked by deadly rampage

Updated 57 min 52 sec ago
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Neighbors of alleged Bondi gunmen shocked by deadly rampage

  • Local media named the two suspected gunmen as father and son Sajid and Naveed Akram

SYDNEY: Like many people in Sydney, Glenn Nelson spent his Sunday evening watching television coverage of a deadly shooting on the city’s iconic Bondi Beach.
But stepping onto his front porch, flanked by neatly trimmed box hedges, he saw armed police cordoning off the street before raiding the house opposite — home of the two suspects who are alleged to have killed 15 people in Australia’s worst mass shooting in decades.
“I thought, ‘Okay, I’ll catch the rest in the morning,’ the next thing, the drama is out the front door,” he said in an interview on Monday, shortly after mowing his lawn.
Nelson and other neighbors said the family living across the street kept to themselves, but seemed like any other in the suburb of Bonnyrigg, a working-class, well-kept enclave with an ethnically diverse population around 36 km (22 miles) by road from Sydney’s central business district.
Local media named the two suspected gunmen as father and son Sajid and Naveed Akram.
Police have not named the suspects, but they said the older man, 50, was killed at the scene, taking the number of dead to 16, while his 24-year-old son was in a critical condition in hospital.
Police said the son was known to authorities and the father had a firearms license.
The Sydney Morning Herald spoke to a woman on Sunday evening who identified herself as the wife and mother of the suspects.
She said the two men had told her they were going on a fishing trip before heading to Bondi and opening fire on an event celebrating the Jewish festival of Hanukkah.
“I always see the man and the woman and the son,” said 66-year-old Lemanatua Fatu, who lives across the street.
“They are normal people.”
Until Sunday’s shooting, Bonnyrigg was an otherwise unremarkable neighborhood typical of Sydney’s sprawling Western suburbs.
It has significant Vietnamese and Chinese communities, along with many residents who were born in Iraq, Cambodia and Laos, according to government data.
The town center, a strip mall with a large adjoining car park, is flanked by a mosque, a Buddhist temple and several churches.
“It’s a quiet area, very quiet,” Fatu said. “And people mind their own business, doing their own thing — until now.”
Not much is currently known about the suspects’ backgrounds.
A Facebook post from an Arabic and Qur'an studies institute appearing to show one of the men was removed on Monday and no one answered the door at an address listed for it in the neighboring suburb of Heckenberg.
On Monday afternoon, as police took down their cordon, several people re-entered the house, covering their faces. They made no comment to the media and did not answer the door.