Despite significant progress, several challenges remain in the effort to eradicate polio. These include:
1. Geographic Barriers: Some regions, particularly in conflict zones, are difficult to access. 2. Vaccine Hesitancy: Misinformation and cultural beliefs can lead to resistance against vaccination. 3. Financial Constraints: Sustained funding is necessary to continue vaccination and surveillance efforts. 4. Virus Mutation: The poliovirus can mutate, making it harder to control.
