Imagine a world where a disease that once paralyzed and killed countless children is now virtually eradicated in an entire region. That's the reality in South-East Asia, which has officially remained polio-free for 15 years since its last recorded case of wild poliovirus. But here's where it gets even more impressive: this region isn't just resting on its laurels. It's actively using the lessons and innovations from its polio eradication program to tackle other public health challenges head-on. And this is the part most people miss: the relentless effort and collaboration that made this possible.
On a fateful day in 2011, a young girl in Howrah, West Bengal, India, became the last known victim of wild poliovirus in the region. Fast forward to January 13, 2026, and the World Health Organization (WHO) celebrates this milestone as a testament to what can be achieved through strong government leadership, a dedicated healthcare workforce, and robust community partnerships. Dr. Catharina Boehme, Officer-in-Charge of the WHO South-East Asia Region, emphasized, “This extraordinary achievement demonstrates the power of unwavering commitment and collaboration.”
But how did they get here? In 2025 alone, over 50,000 stool samples were collected and tested across the region through a network of 13 WHO-accredited polio laboratories. This rigorous surveillance ensures that any potential reintroduction of the virus is caught early. Yet, as Dr. Boehme warns, the fight isn’t over. As long as polio exists anywhere in the world, the risk of it spreading to polio-free regions remains. Countries must maintain high immunization coverage, vigilant surveillance, and rapid response systems—not just for polio, but for all vaccine-preventable diseases.
Here’s where it gets controversial: While the region has successfully maintained its polio-free status, the global community remains divided on the best vaccination strategies. As of January 19, 2026, WHO recommends a combination of inactivated poliovirus vaccine (IPV) and oral poliovirus vaccine (OPV). However, the rollout of the novel oral poliovirus vaccine type 2 (nOPV2) has sparked debates about its effectiveness and safety, despite over 2 billion doses being administered since March 2021. Should we prioritize newer vaccines, or stick to proven methods? This question continues to fuel discussions among health experts.
In 2025, vaccination campaigns across the region combined IPV and nOPV2, showcasing a hybrid approach to immunization. Dr. Boehme reflects, “The journey from polio endemicity to sustained polio-free status proves that ambitious public health goals are achievable.” Yet, she adds, “WHO remains committed to strengthening routine immunization systems and advancing disease elimination across the region.”
And this is the part that should concern every traveler: The U.S. CDC currently identifies 32 countries where poliovirus remains a health risk. If you’re traveling internationally, it’s crucial to consult a healthcare provider about immunization options, including a polio booster dose. After all, global health is a shared responsibility.
So, here’s a thought-provoking question for you: With polio still lurking in parts of the world, how can we ensure that regions like South-East Asia remain protected while also addressing global health inequities? Share your thoughts in the comments—let’s keep the conversation going!
