Population
Sewage water from two independent sewage plants in the northern prefecture of the Kyushu district, Japan
Design
Other
Follow-up
34 months (April 2010 to January 2013)
Authors
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Supports environmental surveillance during polio vaccine transitions; leaves open optimal post-cessation protocols pending further validation.
Environmental surveillance is a highly sensitive method for detecting poliovirus excretion in communities during the transition from oral to inactivated polio vaccines.
Nakamura et al. (2015) studied this question.
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