Evaluation of the bag-mediated filtration system as a novel tool for poliovirus environmental surveillance: Results from a comparative field study in Pakistan.

PloS One
Nicolette A ZhouJohn Scott Meschke

Abstract

Poliovirus (PV) environmental surveillance (ES) plays an important role in the global eradication program and is crucial for monitoring silent PV circulation especially as clinical cases decrease. This study compared ES results using the novel bag-mediated filtration system (BMFS) with the current two-phase separation method. From February to November 2016, BMFS and two-phase samples were collected concurrently from twelve sites in Pakistan (n = 117). Detection was higher in BMFS than two-phase samples for each Sabin-like (SL) PV serotype (p<0.001) and wild PV type 1 (WPV1) (p = 0.065). Seventeen sampling events were positive for WPV1, with eight discordant in favor of BMFS and two in favor of two-phase. A vaccine-derived PV type 2 was detected in one BMFS sample but not the matched two-phase. After the removal of SL PV type 2 (SL2) from the oral polio vaccine in April 2016, BMFS samples detected SL2 more frequently than two-phase (p = 0.016), with the last detection by either method occurring June 12, 2016. More frequent PV detection in BMFS compared to two-phase samples is likely due to the greater effective volume assayed (1620 mL vs. 150 mL). This study demonstrated that the BMFS achieves enhanced ES for all PV serotypes in...Continue Reading

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Citations

Aug 4, 2020·Journal of Applied Microbiology·C S Fagnant-SperatiJ S Meschke
Nov 5, 2019·Food and Environmental Virology·Nicolette A ZhouJohn Scott Meschke
Jan 7, 2019·Food and Environmental Virology·Jill C FalmanJohn Scott Meschke
Oct 2, 2019·Food and Environmental Virology·Concepción F EstívarizJosé A Díaz-Quiñonez
Nov 9, 2019·The American Journal of Tropical Medicine and Hygiene·Angela D Coulliette-SalmondEverardo Vega
Mar 12, 2019·Water Science & Technology, Water Supply·Walda B van ZylJ Scott Meschke
Apr 4, 2021·Viruses·Yarrow S LindenJohn Scott Meschke
Jan 27, 2022·PloS One·Allison KlineJohn Scott Meschke

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