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Polio outbreak region excluded from 2012 vaccine drive
File - A health worker administers polio vaccination to a child in Raqqa, eastern Syria in this November 18, 2013.     (REUTERS/Nour Fourat)
File - A health worker administers polio vaccination to a child in Raqqa, eastern Syria in this November 18, 2013. (REUTERS/Nour Fourat)
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BEIRUT: The Syrian government excluded the largely rebel-held province of Deir al-Zor – where polio broke out this year – from a 2012 vaccination campaign, arguing that most residents had fled although hundreds of thousands were still there, a Reuters investigation shows.

Public health researchers say missing out the Syrian province contributed to the re-emergence there of polio, a highly infectious, incurable disease that can paralyze a child within hours but has been wiped out in many parts of the world.

In November, the World Health Organization said 13 cases had been found in the province. Two more have since been recorded there and the virus has surfaced in Aleppo city and near Damascus, the first outbreak since 1999 in Syria, where civil war has raged since a crackdown on protests in 2011.

A Dec. 6, 2012, WHO statement said it had launched a campaign in conjunction with the Syrian Ministry of Health and the United Nations Children’s Fund to vaccinate “all children below the age of 5 against polio.”

It said the campaign, involving 4,000 health workers and volunteers, would cover roughly 2.5 million children in 13 of Syria’s 14 governorates except for Deir al-Zor as “the majority of its residents have relocated to other areas in the country.”

It was not possible to contact the Syrian government for comment on its reported decision to leave out Deir al-Zor, a region of roughly 1.2 million people, where more than 600,000 under 15s were living in 2012, according to WHO data.

By December of that year, rebels had taken territory in other provinces as well.

While international agencies support such vaccination campaigns, which are designed to fill gaps left when emergencies prevent routine vaccinations, it is a country’s government which decides when and where they will take place.

Asked to comment on researchers’ allegations that aid groups should have raised the alarm earlier and prepared better, Chris Maher, who is coordinating the regional polio response for the WHO, said it had warned vaccination rates were falling.

The December 2012 and the October-November 2013 campaigns were planned and organized in response to that, he said. “In a complex emergency setting, it is not that easy to continue routine campaigns.”

Maher said it was reported that 67,000 children under the age of 5 were subsequently vaccinated in Deir al-Zor in January 2013.

Public health researchers say that is a coverage rate of around 50 percent, insufficient to prevent polio from spreading, based on census data. The actual population is hard to establish; some residents left while other people fled into Deir al-Zor from elsewhere.

Repeated vaccinations and high coverage levels are needed to interrupt transmission of the polio virus and prevent outbreaks.

“There was a lack of a proper campaign to vaccinate children across the country over the past two years,” said Dr. Adam Coutts, a Lebanon-based public health researcher who has been studying the humanitarian response to the crisis in Syria.

“With the breakdown of the health system, sanitation and nutrition, the exclusion of Deir al-Zor from the vaccination campaign provided the ideal conditions for an outbreak to occur.”

It was not clear why the remote province near Syria’s border with Iraq was singled out.

The city of Deir al-Zor is partially controlled by Syrian government forces while the countryside around it is in the hands of rebels fighting to remove President Bashar Assad.

Maher did not say whether there were other vaccination campaigns in Deir al-Zor during 2012 but confirmed that there was one in October this year, around the same time that polio cases were found in the region.

Asked if he thought leaving a gap in the 2012 campaign allowed polio to take hold in Deir al-Zor, Maher said: “There are unimmunized kids all over Syria. I have no information that that particular area was higher risk than anywhere else given the general deterioration of immunization rates during the conflict.”

He said polio vaccination coverage had dropped across Syria from more than 90 percent in 2010 to below 70 percent in 2012.

United Nations humanitarian agencies work in Syria with the permission of the Syrian government, which has blocked aid convoys to some areas of the country. Opposition fighters and clashes have also hampered access for aid work.

“Questions remain as to why WHO did not better prepare for this, given their own recognition about the risk of outbreaks,” said Coutts.

The WHO says the largest-ever immunization response in the Middle East is underway to vaccinate more than 23 million children against polio in Syria and neighboring countries.

“Inside Syria, the campaign aims to reach 2.2 million children, including those who live in contested areas and those who were missed in an earlier campaign,” it said.

“Many children in Syria remain inaccessible, particularly those trapped in sealed off areas or living in areas where conflict is ongoing.”

The WHO says almost 2 million children in Syria have already been vaccinated, including 600,000 in contested areas of the country, in the first of several rounds.

A version of this article appeared in the print edition of The Daily Star on December 18, 2013, on page 8.
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