The global switch from trivalent oral polio vaccine (tOPV) to bivalent oral polio vaccine (bOPV): facts, experiences and lessons learned from the south-south zone; Nigeria, April 2016

The globally synchronized switch from trivalent Oral Polio Vaccine (tOPV) to bivalent Oral Polio Vaccine (bOPV) took place in Nigeria on April 18th 2016. The country is divided into six geopolitical zones. Thi...

https://bmcinfectdis.biomedcentral.com/articles/10.1186/s12879-018-2963-6

Source: BMC Infectious Diseases - January 27, 2018 Category: Infectious Diseases Authors: Bassey Enya Bassey, Fiona Braka, Rui Gama Vaz, William Komakech, Sylvester Toritseju Maleghemi, Richard Koko, Thompson Igbu, Faith Ireye, Sylvester Agwai, Godwin Ubong Akpan, Sisay Gashu Tegegne, Abdul-Aziz Garba Mohammed and Angela Okocha-Ejeko Tags: Research article Source Type: research