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. 2022 Jul 20;16(7):e0010044. doi: 10.1371/journal.pntd.0010044

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© 2022 Mnkai et al

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Fig 4 — (A) Mean OD values over time categorized by age group.The OD values declined over time in all age groups. (B) OD values of Trop Bio ELISA from 2009, 2010/11 and 2019 from individuals who tested positive in 2019. Most of the remaining filarial infected individuals in 2019 had a positive result of the TropBio ELISA during the surveys in 2009 or 2010/11. Despite being still positive a significant drop of the OD was noted. Only four individuals had been tested negative before, but showed positive results in 2019.