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Appl Environ Microbiol. 2012 Aug;78(15):5406-9. doi: 10.1128/AEM.00491-12. Epub 2012 May 11.

Detection of imported wild polioviruses and of vaccine-derived polioviruses by environmental surveillance in Egypt.

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  • 1National Institute for Health and Welfare (THL), Department of Infectious Disease Surveillance and Control, Virology Unit, Helsinki, Finland.


Systematic environmental surveillance for poliovirus circulation has been conducted in Egypt since 2000. The surveillance has revealed three independent importations of wild-type poliovirus. In addition, several vaccine-derived polioviruses have been detected in various locations in Egypt. In addition to acute flaccid paralysis (AFP) surveillance, environmental surveillance can be used to monitor the wild poliovirus and vaccine-derived poliovirus circulation in populations in support of polio eradication initiatives.

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