Polio: The Virus Of Misinformation

S omewhere in Cameroon, a health worker left home before 6:00 a.m. Her vaccine carrier on her head, register in her bag and shoes already dusty. She has ten houses to cover before noon. In one of them, a child is playing on the floor. Two drops in the mouth, and that child would be safe from a disease that can paralyze for life. She knocks. The mother opens, greets her, then says, “Madame, not today.” This is not because she does not love her child. Not because it costs money-the vaccine is free. She refuses because at about 5.00 a.m., she received a voice note in the family group forum. A man speaking with au­ thority, no name, no face. “My people, do not let them put those drops in your children’s mouths.” The message has been forwarded many times. That is enough to feel true. At that door, the health worker is not fighting a virus. She is fighting a rumour. That is the paradox we live in. Medicine can prevent polio. But misinfor­ mation can bring it back. In Cameroon today, the biggest obstacle is not the cold chain, not distance, not funding. It is what circulates on our phones faster than any ambulance. In 2020, Africa celebrated. The World Health Organisation (W.H.O) African Region was certified free of indigenous wild poliovirus. For Cameroon, the certification was made known in June 2020, after years without a wild case. It was not a simple press release. In 1996, when Nelson Mandela launched “Kick Polio Out of Africa” from Yaounde, polio was paralyzing 75,000 children every year on the continent. The cer­ tification was earned by mothers who walked miles to health centres, vaccinators who crossed rivers, lab workers who tracked every case of acute flaccid para­ lysis. But eradication of wild polio did not mean the end of polio. Since 2021, Cameroon has recorded out­ breaks of cVDPV2-circulating vaccine-derived poliovirus type 2. The name itself creates confusion. One can hear parents: “You said the vaccine protects, now you say it causes polio?” That confusion is where rumours grow. We must explain it simply, without hiding anything. The oral polio vaccine contains a weakened live virus. In a vaccinated child, it creates strong im­ munity in the gut. That child is protected. But if many children in a community are not vaccinated, that wea­ kened virus can keep passing from child to child for months. As it passes, it can change and regain strength. In an under-immunized area, it can then cause paralysis like wild polio. That is cVDPV2. So the vaccine is not dangerous. Low coverage is dangerous. The virus ex­ ploits the gap we leave. The more children we vaccinate, the less room it has to circulate and change. This is why every round matters. And this is exactly what is twisted online. On TikTok, Facebook, WhatsApp, the story becomes: “See? The vaccine itself gives polio.” Or “They test ex­ pired vaccines on us.” Or “It is a plan to reduce our po­ pulation.” Sometimes wrapped in religious language. Sometimes as a leaked secret. “A nurse confided...” No proof. No source. But it is shocking. A woman in the Mvog-Ada neighbourhood in Yaaounde said: “I vaccinated my first two. For the third, I am scared. Too many things on the internet.” Her fear is real. We cannot insult her. We must answer her. Because behind every rumour, a child will pay. Polio is cruel. It enters through the mouth, multiplies in the intestine, and in one in 200 infections, it invades the spinal cord and destroys the nerves that move the legs. A child can go to sleep and wake up unable to stand. There is no cure for that paralysis. We can only prevent it. Two drops, several times. That is simple. Who benefits from these falsehoods? Not the children. Not the families. Often it is someone looking for views, for importance. But they will not carry the pa­ ralyzed child. It is the mother who will. It is the com­ munity whose immunity drops. Questioning is not the problem. Every parent has the right...