Twenty-five years. That is how long the Gaza Strip had gone without a single case of polio. The virus was gone. Eradicated. Then, on July 16, 2024, it was back. By July 29, the Gaza health ministry had declared an official epidemic.
The culprit is not the wild virus that once paralyzed children worldwide. It is a circulating vaccine-derived poliovirus type 2, or cVDPV2. This strain emerges when the weakened virus in the oral polio vaccine mutates and begins to spread in under-immunized populations. It is a paradox: the very tool used to wipe out polio can, in communities with low vaccination rates, spark new outbreaks. That is exactly what has happened in Gaza.
The Gaza health ministry did not mince words. They called the outbreak a setback to the global polio eradication program. Global health authorities agree. The World Health Organization has stated it is “very likely” that polio is already infecting people in Gaza and spreading through the population.
But confirming cases is proving difficult. The virus is asymptomatic in most people. A person can carry it, pass it to others, and never know. This silent spread makes containment a nightmare. On top of that, Israeli medical blockades have prevented the confirmation of cases. Health authorities cannot get the tests done or the results verified. This is not a bureaucratic hiccup. It is a wall between doctors and the data they need to fight the disease.
Despite these obstacles, tests conducted in Jordan confirmed the first polio infection in Gaza on August 16. The location: the central Gaza Strip. The United Nations has confirmed one case of paralysis. The victim is a 10-month-old baby. One paralyzed child is a tragedy. In an outbreak, it is also a warning. For every one case of paralysis, hundreds, perhaps thousands, of others are likely infected and spreading the virus without symptoms.
The timing matters. Polio was completely eradicated from Gaza 25 years ago. That victory took years of sustained vaccination campaigns, public health infrastructure, and political stability. The current outbreak suggests that immunity levels in the population have dropped dangerously low. Vaccination coverage has likely fallen during the ongoing conflict and blockade. Children who should have been protected are now vulnerable.
The Gaza health ministry has called for increased support and resources. They have emphasized the need for a coordinated response. The WHO and other global health bodies are working with local authorities. But the obstacles are not just medical. They are logistical and political. Blockades slow supplies. Conflict disrupts campaigns. A virus that spreads in silence does not care about checkpoints.
The health ministry has also warned that the epidemic poses a significant risk to bordering countries. Polio does not respect borders. If it is circulating in Gaza, it can move into Israel, Egypt, and beyond. The global eradication program, already struggling to finish the job in Afghanistan and Pakistan, now faces a new front.
This is not a new disease. It is an old one that came back. Twenty-five years of absence erased in a matter of weeks. The first infection was found on July 16. By July 29, it was an epidemic. That speed is the nature of the virus in a vulnerable population. The consequences are now visible in a paralyzed baby. How many more will follow depends on what happens next.
