A five-day mass polio vaccination campaign in the Gaza Strip concluded on Wednesday, reaching nearly 603 000 children under 10 years of age with novel oral polio vaccine type 2 (nOPV2) following comprehensive, simultaneous access to all five governorates during the ongoing ceasefire. The campaign was conducted as part of emergency efforts to end an ongoing poliovirus outbreak and prevent further spread in the Gaza Strip. 

During this round, an additional 40 000 children were vaccinated as compared to the previous two rounds conducted in September and October 2024, after poliovirus was detected in the Gaza Strip. The ceasefire enabled health workers to reach more children who had missed vaccinations due to displacement during the phased approach, living in areas that previously required special coordination for access, or being unreachable during the October 2024 round due to insecurity in North Gaza, including Jabalia, Beit Lahiya, and Beit Hanoun.