Key result
The globally synchronized switch from tOPV to bOPV was successfully implemented across 3,078 health facilities in Nigeria's south-south zone, resulting in the withdrawal of 18,701 tOPV vials.
Observational (n=3,078)
Yes
The globally synchronized switch from tOPV to bOPV was successfully implemented in Nigeria's south-south zone despite logistical and funding challenges.
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The tOPV-bOPV switch succeeded in Nigeria's south-south zone; supports coordinated future withdrawals but leaves optimal funding timing open.
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Bassey et al. (2018) conducted an observational in Polio vaccination (tOPV to bOPV switch) (n=3,078). Switch from trivalent oral polio vaccine (tOPV) to bivalent oral polio vaccine (bOPV) was evaluated on Successful withdrawal of tOPV and replacement with bOPV across health facilities. The globally synchronized switch from tOPV to bOPV was successfully implemented across 3,078 health facilities in Nigeria's south-south zone, resulting in the withdrawal of 18,701 tOPV vials.
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