Excluding polio in areas of inadequate surveillance in the final stages of eradication in China
In 1996, China adopted a virological classification of acute flaccid paralysis (AFP) cases for its surveillance system. Only AFP cases with wild poliovirus in stool specimens are confirmed as polio. Cases with adequate stool specimens that are negative for wild poliovirus are not counted. This paper...
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The World Health Organization
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| Series: | Bulletin of the World Health Organization |
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| Online Access: | http://www.scielosp.org/scielo.php?script=sci_arttext&pid=S0042-96862000000300006&lng=en&tlng=en |
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| author | E.J. Hoekstra Chai Feng Wang Xiao-jun Zhang Xing-lu Yu Jing-jin J. Bilous |
| author_facet | E.J. Hoekstra Chai Feng Wang Xiao-jun Zhang Xing-lu Yu Jing-jin J. Bilous |
| author_sort | E.J. Hoekstra |
| collection | DOAJ |
| description | In 1996, China adopted a virological classification of acute flaccid paralysis (AFP) cases for its surveillance system. Only AFP cases with wild poliovirus in stool specimens are confirmed as polio. Cases with adequate stool specimens that are negative for wild poliovirus are not counted. This paper describes a methodology to rule out poliomyelitis in AFP cases with inadequate stool specimens. National surveillance data were analysed using dot maps to detect clusters of AFP cases with high-risk factors for poliomyelitis. The surveillance system and vaccine coverage were assessed during field investigations. Four clusters of AFP cases were identified, but no poliomyelitis cases. Programmatic failures in the identified high-risk areas included low vaccination rates, poor stool specimen collection and inadequate AFP surveillance. Programme strategies were implemented to correct the identified failures. Use of this methodology provides strong evidence consistent with the absence of wild poliovirus in China. |
| first_indexed | 2024-03-07T17:04:24Z |
| format | Article |
| id | doaj.art-fc53c079054b44e5823ac6a132699456 |
| institution | Directory Open Access Journal |
| issn | 0042-9686 |
| language | English |
| last_indexed | 2024-03-07T17:04:24Z |
| publisher | The World Health Organization |
| record_format | Article |
| series | Bulletin of the World Health Organization |
| spelling | doaj.art-fc53c079054b44e5823ac6a1326994562024-03-03T02:52:16ZengThe World Health OrganizationBulletin of the World Health Organization0042-968678331532010.1590/S0042-96862000000300006S0042-96862000000300006Excluding polio in areas of inadequate surveillance in the final stages of eradication in ChinaE.J. Hoekstra0Chai Feng1Wang Xiao-jun2Zhang Xing-lu3Yu Jing-jin4J. Bilous5World Health OrganizationChinese Academy of Preventive MedicineChinese Academy of Preventive MedicineChinese Academy of Preventive MedicineMinistry of HealthWorld Health OrganizationIn 1996, China adopted a virological classification of acute flaccid paralysis (AFP) cases for its surveillance system. Only AFP cases with wild poliovirus in stool specimens are confirmed as polio. Cases with adequate stool specimens that are negative for wild poliovirus are not counted. This paper describes a methodology to rule out poliomyelitis in AFP cases with inadequate stool specimens. National surveillance data were analysed using dot maps to detect clusters of AFP cases with high-risk factors for poliomyelitis. The surveillance system and vaccine coverage were assessed during field investigations. Four clusters of AFP cases were identified, but no poliomyelitis cases. Programmatic failures in the identified high-risk areas included low vaccination rates, poor stool specimen collection and inadequate AFP surveillance. Programme strategies were implemented to correct the identified failures. Use of this methodology provides strong evidence consistent with the absence of wild poliovirus in China.http://www.scielosp.org/scielo.php?script=sci_arttext&pid=S0042-96862000000300006&lng=en&tlng=enpoliomyelitisparalysisepidemiological surveillancedisease notificationchina |
| spellingShingle | E.J. Hoekstra Chai Feng Wang Xiao-jun Zhang Xing-lu Yu Jing-jin J. Bilous Excluding polio in areas of inadequate surveillance in the final stages of eradication in China Bulletin of the World Health Organization poliomyelitis paralysis epidemiological surveillance disease notification china |
| title | Excluding polio in areas of inadequate surveillance in the final stages of eradication in China |
| title_full | Excluding polio in areas of inadequate surveillance in the final stages of eradication in China |
| title_fullStr | Excluding polio in areas of inadequate surveillance in the final stages of eradication in China |
| title_full_unstemmed | Excluding polio in areas of inadequate surveillance in the final stages of eradication in China |
| title_short | Excluding polio in areas of inadequate surveillance in the final stages of eradication in China |
| title_sort | excluding polio in areas of inadequate surveillance in the final stages of eradication in china |
| topic | poliomyelitis paralysis epidemiological surveillance disease notification china |
| url | http://www.scielosp.org/scielo.php?script=sci_arttext&pid=S0042-96862000000300006&lng=en&tlng=en |
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